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Mühle-Glashütte 29er Big M1-25-39-MB
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Mühle-Glashütte 29er Big M1-25-39-MB

Mühle-Glashütte 29er Big M1-25-39-MB

$807.95

Original: $2,308.43

-65%
Mühle-Glashütte 29er Big M1-25-39-MB

$2,308.43

$807.95

The Story

The Mühle-Glashütte 29er Big in south sea-blue with a stainless steel bracelet is the most vivid watch in the 29er collection — and the one that makes the strongest first impression. Named after the 29er sailing dinghy, the collection has always carried nautical DNA. But where the sand-and-blue variant evokes a sandy shoreline and the black plays it safe, the south sea-blue goes straight to open water: a saturated, medium blue dial paired with a deeper petrol-coloured rehaut that shifts between teal and dark green depending on the light.

The two-tone blue-on-blue approach is what gives this dial its depth. The south sea-blue dial is the brighter, more luminous surface. The petrol rehaut — which carries the fine minute scale — sits darker and denser around the perimeter, creating a ring of contrast that frames the dial and adds a layered quality you don't get from a single-colour face. Applied steel indices and Super-LumiNova-coated hands and markers ensure the watch reads as clearly in low light as it does in sun. The layout is deliberately simple: three hands, a date window, and nothing else to compete with the colour.

Inside, the SW 200-1 in the Mühle version features the brand's patented woodpecker neck regulation — a shock-resistant fine adjustment system developed for German maritime rescue operations. The exhibition caseback reveals blued screws, Glashütte solarisation finishing, and the Mühle rotor. A flank protector shields the screw-down crown from lateral impacts, and the stainless steel bracelet with butterfly clasp provides the secure, polished presence that elevates this from a beach watch to a watch that happens to love the water.

Founded in 1869 by Robert Mühle, the family business began as the sole manufacturer of precision measuring instruments for Glashütte's legendary watchmakers — including A. Lange & Söhne. Now in its sixth generation under Thilo Mühle, it remains the only watch manufacturer in Glashütte still owned by a long-established local family. The south sea-blue 29er Big is the collection at its most expressive — Glashütte precision in colour.

At a Glance

  • Brand Mühle-Glashütte
  • Collection 29er Big
  • Reference M1-25-39-MB
  • Movement SW 200-1, Mühle Version
  • Function 3 Hands + Date
  • Case Size 42.4mm × 11.3mm
  • Dial South Sea-Blue with Petrol Rehaut
  • Regulation Patented Woodpecker Neck
  • Glass Anti-Reflective Sapphire Crystal
  • Caseback Exhibition (Transparent)
  • Water Resistance 10 bar (100m)
  • Origin Made in Germany (Glashütte)

Why You'll Love It

  • South sea-blue dial with petrol rehaut — a two-tone blue that shifts between teal and deep green depending on the angle, giving the watch a depth and presence that single-colour dials can't match
  • The most expressive colourway in the 29er collection — vivid enough to make a statement, restrained enough to wear daily without tiring of it
  • Stainless steel bracelet with butterfly clasp — elevates the colour story with a polished, secure foundation that works from office to weekend
  • Flank protector — a raised guard that shields the screw-down crown from lateral impacts during active wear
  • Patented woodpecker neck regulation — developed for German maritime rescue operations, ensuring precision even under harsh conditions
  • Exhibition caseback reveals the Mühle-modified movement with blued screws, Glashütte solarisation, and the branded rotor — genuine Glashütte craftsmanship visible on the wrist

Perfect For

  • Blue dial enthusiasts
  • Nautical & sailing lifestyle
  • Making a colour statement
  • Smart casual & weekend
  • Summer & travel wear
  • Entry into German watchmaking
  • First luxury automatic
  • Birthday gift for him

Key Features

  • South sea-blue dial with petrol rehaut — The two-tone blue palette creates a layered dial with genuine depth. The brighter south sea-blue face draws the eye; the deeper petrol rehaut frames it and carries the fine minute scale. The colour shifts subtly with the angle of light — from warm teal in sunlight to a cooler, denser blue indoors
  • SW 200-1, Mühle Version — Swiss-made Sellita base calibre refined in Glashütte with the patented woodpecker neck regulation, Mühle rotor, blued screws, Glashütte solarisation, and perlage finishing
  • Patented woodpecker neck regulation — Developed in 2003, the spring's distinctive shape locks the regulator arm both sideways and downward onto the balance cock, delivering superior shock resistance compared to a traditional swan neck regulator
  • Flank protector — A raised section on the case band that shields the screw-down crown from side impacts — a practical detail borrowed from the brand's S.A.R. Rescue-Timer tool watch heritage
  • Stainless steel bracelet with butterfly clasp — 22mm brushed and polished link bracelet with a secure folding deployment clasp. The steel complements the blue tones without competing — letting the dial remain the focal point
  • Anti-reflective sapphire crystal and exhibition caseback — Scratch-resistant at Mohs 9, with anti-reflective coating for glare-free reading. The transparent caseback reveals the movement finishing that separates a Glashütte manufacture from a fashion watch

Technical Specifications

The Mühle-Glashütte 29er Big (M1-25-39-MB) is a German-made automatic wristwatch in a summery south sea-blue and petrol colourway. The 42.4mm stainless steel case with flank protector measures 11.3mm in height with a 49.0mm lug-to-lug span, protected by an anti-reflective sapphire crystal with an exhibition caseback and screw-down crown. The SW 200-1 calibre in the Mühle version incorporates the patented woodpecker neck regulation, Mühle rotor, stop-second function, and quick-set date, delivering up to 41 hours of power reserve. The south sea-blue dial with petrol rehaut features applied indices and Super-LumiNova-coated hands and markers, paired with a 22mm stainless steel bracelet with butterfly clasp. Water-resistant to 10 bar.
Case
Diameter 42.4mm
Height 11.3mm
Lug-to-Lug 49.0mm
Shape Round
Material Stainless Steel (Brushed / Polished)
Crown Protection Flank Protector
Glass Anti-Reflective Sapphire Crystal
Caseback Exhibition (Transparent Window)
Crown Screw-Down
Water Resistance 10 bar (100 metres)
Dial
Colour South Sea-Blue
Rehaut Petrol (with Minute Scale)
Indices Applied Steel
Hands & Markers Super-LumiNova Coated
Date Display Window
Bracelet
Material Stainless Steel
Width 22mm
Clasp Butterfly (Folding Deployment)
Movement
Calibre SW 200-1, Mühle Version
Type Automatic (Self-Winding)
Regulation Patented Woodpecker Neck
Rotor Mühle Custom Rotor
Functions Hours, Minutes, Seconds, Date
Additional Stop-Second, Quick-Set Date
Power Reserve Up to 41 hours
Finishing Blued Screws, Glashütte Solarisation, Perlage

The Glashütte Difference

  • Glashütte, Saxony — Germany's most storied watchmaking town, home to A. Lange & Söhne, Glashütte Original, NOMOS, and Mühle-Glashütte. Every Mühle watch is assembled, regulated, and tested here
  • Six generations, one family — Founded by Robert Mühle in 1869 as a maker of precision measuring instruments for Glashütte's watchmakers. The company survived two World Wars, Soviet-era expropriation, and reunification. Now led by Thilo Mühle, with the sixth generation already on board
  • Nautical DNA — Mühle-Glashütte's modern wristwatch era began in 1996 when a shipyard asked them to build dive watches for maintenance crews. The brand still produces marine chronometers and supplies the German Maritime Search and Rescue Service (DGzRS). The 29er collection carries that maritime heritage into an accessible everyday format
  • Patented innovation — The woodpecker neck regulation (2003), Mühle three-quarter plate (2008), and proprietary in-house calibres (MU 9408, MU 9411) demonstrate that this is a manufacturer, not merely an assembler

Best Matched With

  • White linen shirt
  • Navy blazer
  • Light grey chinos
  • Tan leather shoes
  • White polo
  • Cream knitwear
  • Blue chambray shirt

Frequently Asked Questions

How does the south sea-blue compare to the other 29er Big dial colours?

The 29er Big comes in five dial colours, each with a distinct personality. Black is the most versatile — goes with everything, draws no attention to itself. Sand with nautic blue rehaut is warm and coastal — summer and resort wear. Silver-grey is sporty and understated — a quiet all-rounder. White is crisp and nautical — the cleanest, brightest option. South sea-blue with petrol rehaut (this model) is the most vivid and expressive — a two-tone blue that shifts in the light and makes the strongest visual impression. If you want your watch to be the first thing people notice on your wrist, this is the one.

What exactly is the "petrol" rehaut colour?

Petrol is a deep, dark blue-green — somewhere between teal and dark emerald depending on the light. It sits darker and denser than the south sea-blue dial, creating a contrast ring around the dial perimeter. In direct sunlight it tends toward teal; in indoor or low light it reads as a deep blue-green. The two-tone pairing gives the dial a layered depth that a single-colour blue cannot achieve.

What's the difference between the 29er and the 29er Big?

Both share the same 42.4mm case diameter, but the 29er Big adds a flank protector — a raised section on the case band that shields the screw-down crown from lateral impacts. The 29er Big is the sportier, more robust variant. In terms of movement, dial design, and finishing, Mühle describes them as identical twins — a one-design boat from sail to hull.

Can I swap the bracelet for a canvas or leather strap?

Yes. The south sea-blue 29er Big is also available on black leather, grey canvas, and coffee-brown canvas straps. The 22mm lug width is compatible with any standard 22mm strap. The canvas and leather variants use quick-release spring bars for tool-free swapping. The bracelet version can be changed with a standard spring bar tool.

How does the 29er Big compare to the 29er Pointer Date or 29er Day/Date?

The 29er Big (M1-25-39-MB) is a three-hand watch with a simple date window — the cleanest dial layout in the collection. The 29er Pointer Date (M1-25-32) adds a sweeping date hand on a blue rehaut — the rarest complication. The 29er Day/Date (M1-25-34) adds both day and date windows — the most informative layout. All share the same case diameter, woodpecker neck regulation, sapphire crystal, and 10 bar water resistance. Choose the Big for simplicity and colour. Choose the Pointer Date for the rare complication. Choose the Day/Date for maximum information at a glance.

What is the woodpecker neck regulation?

Developed and patented by Mühle-Glashütte in 2003, the woodpecker neck regulation is a further evolution of the traditional Glashütte swan neck fine adjustment. Its specially shaped spring locks the regulator arm both sideways against the fine adjustment screw and downward onto the balance cock. This dual-axis pressure prevents the arm from jumping out of position during shocks. Originally developed for the S.A.R. Rescue-Timer used in German maritime rescue, it is now fitted to every Mühle movement.

Is this watch made in Germany?

Yes. While the base calibre is Swiss-made (Sellita), it is refined, regulated, and finished in Mühle-Glashütte's own manufactory in Glashütte, Saxony. The woodpecker neck regulation, Mühle rotor, Glashütte solarisation, perlage finishing, and blued screws are all applied in-house. The case, dial assembly, and final quality control are performed in Glashütte.

Can I swim with this watch?

Yes. With 10 bar (100 metres) water resistance and a screw-down crown, the 29er Big is suitable for swimming and recreational water sports. The 29er collection is named after a sailing dinghy — water readiness is fundamental to its design. It is not intended for scuba diving.

How long does the power reserve last?

Up to 41 hours when fully wound. The automatic movement is self-winding through wrist motion. If left unworn for roughly two days, the watch will stop and need to be set again — simply wear it or give the crown a few manual winds to restart.

Is this a good gift?

Exceptional — especially for someone who already owns a black or white watch and is ready for colour. The south sea-blue and petrol combination is immediately distinctive without being loud, the exhibition caseback adds a personal discovery moment, and the story of a six-generation German watchmaking family gives the gift genuine depth. A standout choice for birthdays, promotions, and milestone celebrations.

Why Buy from City Chain

  • Authorised Retailer Official Mühle-Glashütte dealer in Singapore
  • 100% Authentic Genuine German-made timepiece
  • Manufacturer Warranty Official Mühle-Glashütte warranty
  • Bracelet Sizing Complimentary adjustment in-store
Extra $20 OFF with min. $300 spend — Use Code: FORYOU20

Description

The Mühle-Glashütte 29er Big in south sea-blue with a stainless steel bracelet is the most vivid watch in the 29er collection — and the one that makes the strongest first impression. Named after the 29er sailing dinghy, the collection has always carried nautical DNA. But where the sand-and-blue variant evokes a sandy shoreline and the black plays it safe, the south sea-blue goes straight to open water: a saturated, medium blue dial paired with a deeper petrol-coloured rehaut that shifts between teal and dark green depending on the light.

The two-tone blue-on-blue approach is what gives this dial its depth. The south sea-blue dial is the brighter, more luminous surface. The petrol rehaut — which carries the fine minute scale — sits darker and denser around the perimeter, creating a ring of contrast that frames the dial and adds a layered quality you don't get from a single-colour face. Applied steel indices and Super-LumiNova-coated hands and markers ensure the watch reads as clearly in low light as it does in sun. The layout is deliberately simple: three hands, a date window, and nothing else to compete with the colour.

Inside, the SW 200-1 in the Mühle version features the brand's patented woodpecker neck regulation — a shock-resistant fine adjustment system developed for German maritime rescue operations. The exhibition caseback reveals blued screws, Glashütte solarisation finishing, and the Mühle rotor. A flank protector shields the screw-down crown from lateral impacts, and the stainless steel bracelet with butterfly clasp provides the secure, polished presence that elevates this from a beach watch to a watch that happens to love the water.

Founded in 1869 by Robert Mühle, the family business began as the sole manufacturer of precision measuring instruments for Glashütte's legendary watchmakers — including A. Lange & Söhne. Now in its sixth generation under Thilo Mühle, it remains the only watch manufacturer in Glashütte still owned by a long-established local family. The south sea-blue 29er Big is the collection at its most expressive — Glashütte precision in colour.

At a Glance

  • Brand Mühle-Glashütte
  • Collection 29er Big
  • Reference M1-25-39-MB
  • Movement SW 200-1, Mühle Version
  • Function 3 Hands + Date
  • Case Size 42.4mm × 11.3mm
  • Dial South Sea-Blue with Petrol Rehaut
  • Regulation Patented Woodpecker Neck
  • Glass Anti-Reflective Sapphire Crystal
  • Caseback Exhibition (Transparent)
  • Water Resistance 10 bar (100m)
  • Origin Made in Germany (Glashütte)

Why You'll Love It

  • South sea-blue dial with petrol rehaut — a two-tone blue that shifts between teal and deep green depending on the angle, giving the watch a depth and presence that single-colour dials can't match
  • The most expressive colourway in the 29er collection — vivid enough to make a statement, restrained enough to wear daily without tiring of it
  • Stainless steel bracelet with butterfly clasp — elevates the colour story with a polished, secure foundation that works from office to weekend
  • Flank protector — a raised guard that shields the screw-down crown from lateral impacts during active wear
  • Patented woodpecker neck regulation — developed for German maritime rescue operations, ensuring precision even under harsh conditions
  • Exhibition caseback reveals the Mühle-modified movement with blued screws, Glashütte solarisation, and the branded rotor — genuine Glashütte craftsmanship visible on the wrist

Perfect For

  • Blue dial enthusiasts
  • Nautical & sailing lifestyle
  • Making a colour statement
  • Smart casual & weekend
  • Summer & travel wear
  • Entry into German watchmaking
  • First luxury automatic
  • Birthday gift for him

Key Features

  • South sea-blue dial with petrol rehaut — The two-tone blue palette creates a layered dial with genuine depth. The brighter south sea-blue face draws the eye; the deeper petrol rehaut frames it and carries the fine minute scale. The colour shifts subtly with the angle of light — from warm teal in sunlight to a cooler, denser blue indoors
  • SW 200-1, Mühle Version — Swiss-made Sellita base calibre refined in Glashütte with the patented woodpecker neck regulation, Mühle rotor, blued screws, Glashütte solarisation, and perlage finishing
  • Patented woodpecker neck regulation — Developed in 2003, the spring's distinctive shape locks the regulator arm both sideways and downward onto the balance cock, delivering superior shock resistance compared to a traditional swan neck regulator
  • Flank protector — A raised section on the case band that shields the screw-down crown from side impacts — a practical detail borrowed from the brand's S.A.R. Rescue-Timer tool watch heritage
  • Stainless steel bracelet with butterfly clasp — 22mm brushed and polished link bracelet with a secure folding deployment clasp. The steel complements the blue tones without competing — letting the dial remain the focal point
  • Anti-reflective sapphire crystal and exhibition caseback — Scratch-resistant at Mohs 9, with anti-reflective coating for glare-free reading. The transparent caseback reveals the movement finishing that separates a Glashütte manufacture from a fashion watch

Technical Specifications

The Mühle-Glashütte 29er Big (M1-25-39-MB) is a German-made automatic wristwatch in a summery south sea-blue and petrol colourway. The 42.4mm stainless steel case with flank protector measures 11.3mm in height with a 49.0mm lug-to-lug span, protected by an anti-reflective sapphire crystal with an exhibition caseback and screw-down crown. The SW 200-1 calibre in the Mühle version incorporates the patented woodpecker neck regulation, Mühle rotor, stop-second function, and quick-set date, delivering up to 41 hours of power reserve. The south sea-blue dial with petrol rehaut features applied indices and Super-LumiNova-coated hands and markers, paired with a 22mm stainless steel bracelet with butterfly clasp. Water-resistant to 10 bar.
Case
Diameter 42.4mm
Height 11.3mm
Lug-to-Lug 49.0mm
Shape Round
Material Stainless Steel (Brushed / Polished)
Crown Protection Flank Protector
Glass Anti-Reflective Sapphire Crystal
Caseback Exhibition (Transparent Window)
Crown Screw-Down
Water Resistance 10 bar (100 metres)
Dial
Colour South Sea-Blue
Rehaut Petrol (with Minute Scale)
Indices Applied Steel
Hands & Markers Super-LumiNova Coated
Date Display Window
Bracelet
Material Stainless Steel
Width 22mm
Clasp Butterfly (Folding Deployment)
Movement
Calibre SW 200-1, Mühle Version
Type Automatic (Self-Winding)
Regulation Patented Woodpecker Neck
Rotor Mühle Custom Rotor
Functions Hours, Minutes, Seconds, Date
Additional Stop-Second, Quick-Set Date
Power Reserve Up to 41 hours
Finishing Blued Screws, Glashütte Solarisation, Perlage

The Glashütte Difference

  • Glashütte, Saxony — Germany's most storied watchmaking town, home to A. Lange & Söhne, Glashütte Original, NOMOS, and Mühle-Glashütte. Every Mühle watch is assembled, regulated, and tested here
  • Six generations, one family — Founded by Robert Mühle in 1869 as a maker of precision measuring instruments for Glashütte's watchmakers. The company survived two World Wars, Soviet-era expropriation, and reunification. Now led by Thilo Mühle, with the sixth generation already on board
  • Nautical DNA — Mühle-Glashütte's modern wristwatch era began in 1996 when a shipyard asked them to build dive watches for maintenance crews. The brand still produces marine chronometers and supplies the German Maritime Search and Rescue Service (DGzRS). The 29er collection carries that maritime heritage into an accessible everyday format
  • Patented innovation — The woodpecker neck regulation (2003), Mühle three-quarter plate (2008), and proprietary in-house calibres (MU 9408, MU 9411) demonstrate that this is a manufacturer, not merely an assembler

Best Matched With

  • White linen shirt
  • Navy blazer
  • Light grey chinos
  • Tan leather shoes
  • White polo
  • Cream knitwear
  • Blue chambray shirt

Frequently Asked Questions

How does the south sea-blue compare to the other 29er Big dial colours?

The 29er Big comes in five dial colours, each with a distinct personality. Black is the most versatile — goes with everything, draws no attention to itself. Sand with nautic blue rehaut is warm and coastal — summer and resort wear. Silver-grey is sporty and understated — a quiet all-rounder. White is crisp and nautical — the cleanest, brightest option. South sea-blue with petrol rehaut (this model) is the most vivid and expressive — a two-tone blue that shifts in the light and makes the strongest visual impression. If you want your watch to be the first thing people notice on your wrist, this is the one.

What exactly is the "petrol" rehaut colour?

Petrol is a deep, dark blue-green — somewhere between teal and dark emerald depending on the light. It sits darker and denser than the south sea-blue dial, creating a contrast ring around the dial perimeter. In direct sunlight it tends toward teal; in indoor or low light it reads as a deep blue-green. The two-tone pairing gives the dial a layered depth that a single-colour blue cannot achieve.

What's the difference between the 29er and the 29er Big?

Both share the same 42.4mm case diameter, but the 29er Big adds a flank protector — a raised section on the case band that shields the screw-down crown from lateral impacts. The 29er Big is the sportier, more robust variant. In terms of movement, dial design, and finishing, Mühle describes them as identical twins — a one-design boat from sail to hull.

Can I swap the bracelet for a canvas or leather strap?

Yes. The south sea-blue 29er Big is also available on black leather, grey canvas, and coffee-brown canvas straps. The 22mm lug width is compatible with any standard 22mm strap. The canvas and leather variants use quick-release spring bars for tool-free swapping. The bracelet version can be changed with a standard spring bar tool.

How does the 29er Big compare to the 29er Pointer Date or 29er Day/Date?

The 29er Big (M1-25-39-MB) is a three-hand watch with a simple date window — the cleanest dial layout in the collection. The 29er Pointer Date (M1-25-32) adds a sweeping date hand on a blue rehaut — the rarest complication. The 29er Day/Date (M1-25-34) adds both day and date windows — the most informative layout. All share the same case diameter, woodpecker neck regulation, sapphire crystal, and 10 bar water resistance. Choose the Big for simplicity and colour. Choose the Pointer Date for the rare complication. Choose the Day/Date for maximum information at a glance.

What is the woodpecker neck regulation?

Developed and patented by Mühle-Glashütte in 2003, the woodpecker neck regulation is a further evolution of the traditional Glashütte swan neck fine adjustment. Its specially shaped spring locks the regulator arm both sideways against the fine adjustment screw and downward onto the balance cock. This dual-axis pressure prevents the arm from jumping out of position during shocks. Originally developed for the S.A.R. Rescue-Timer used in German maritime rescue, it is now fitted to every Mühle movement.

Is this watch made in Germany?

Yes. While the base calibre is Swiss-made (Sellita), it is refined, regulated, and finished in Mühle-Glashütte's own manufactory in Glashütte, Saxony. The woodpecker neck regulation, Mühle rotor, Glashütte solarisation, perlage finishing, and blued screws are all applied in-house. The case, dial assembly, and final quality control are performed in Glashütte.

Can I swim with this watch?

Yes. With 10 bar (100 metres) water resistance and a screw-down crown, the 29er Big is suitable for swimming and recreational water sports. The 29er collection is named after a sailing dinghy — water readiness is fundamental to its design. It is not intended for scuba diving.

How long does the power reserve last?

Up to 41 hours when fully wound. The automatic movement is self-winding through wrist motion. If left unworn for roughly two days, the watch will stop and need to be set again — simply wear it or give the crown a few manual winds to restart.

Is this a good gift?

Exceptional — especially for someone who already owns a black or white watch and is ready for colour. The south sea-blue and petrol combination is immediately distinctive without being loud, the exhibition caseback adds a personal discovery moment, and the story of a six-generation German watchmaking family gives the gift genuine depth. A standout choice for birthdays, promotions, and milestone celebrations.

Why Buy from City Chain

  • Authorised Retailer Official Mühle-Glashütte dealer in Singapore
  • 100% Authentic Genuine German-made timepiece
  • Manufacturer Warranty Official Mühle-Glashütte warranty
  • Bracelet Sizing Complimentary adjustment in-store
Extra $20 OFF with min. $300 spend — Use Code: FORYOU20
Mühle-Glashütte 29er Big M1-25-39-MB | City Chain