Try It On

Case Width 40mm

Case Width 40mm

Try It On

Case Width 40mm

Wrist Size (in)

Your Wrist Size Circumference (in)

Band Size

The band for this watch can be adjusted to fit comfortably between the following wrist circumferences.

150 - 205mm (5.9 - 8.1in)

Wrap a garment measuring tape snuggly around your wrist just below the wrist bone. Alternatively use a piece of string and then measure the string length with a ruler. The average wrist size for men is 6.5-7.5", and for women is 5.5-6.5".

How to choose the right case size

Case diameter determines the watch size: it’s the width of the watch case, excluding the crown. Small wrists (<6") suit 28–36mm, average (6–7") fit 36–42mm, and larger wrists (7"+) can wear 42mm+. Smaller cases can feel refined or vintage-inspired, while larger ones make a bold, modern statement.


Read Our Watch Size Guide

Wrist Size (in)

Your Wrist Size Circumference (in)

Band Size

The band for this watch can be adjusted to fit comfortably between the following wrist circumferences.

150 - 205mm (5.9 - 8.1in)

How to measure your wrist size

Wrap a garment measuring tape snuggly around your wrist just below the wrist bone. Alternatively use a piece of string and then measure the string length with a ruler. The average wrist size for men is 6.5-7.5", and for women is 5.5-6.5".

How to choose the right case size

Case diameter determines the watch size: it’s the width of the watch case, excluding the crown. Small wrists (<6") suit 28–36mm, average (6–7") fit 36–42mm, and larger wrists (7"+) can wear 42mm+. Smaller cases can feel refined or vintage-inspired, while larger ones make a bold, modern statement.


Read Our Watch Size Guide

Delivery & Returns

Free Standard Shipping on most orders. Fan Shop orders do not qualify for free shipping. Buy two straps get free Standard Shipping. Get your refund faster with easy online returns! Mail your items back with our return label within 30 days.

Timex Atelier GMT24 M1a

40mm Swiss Made Automatic Stainless Steel Bracelet

Swiss Automatic GMT Movement

Skeletonized Stainless Steel Case

Self Adjustable Stainless Steel Bracelet

Glass-Box Sapphire Crystal

Water Resistant to 100 Meters

Regular price $1,450.00
Sale price $1,450.00 Regular price $1,450.00
TW2Y72300 Timex Atelier GMT24 M1a 40mm Swiss Made Automatic Stainless Steel Bracelet Primary Image
Timex Atelier GMT24 M1a
40mm Swiss Made Automatic Stainless Steel Bracelet

A Dual-Time Machine for the Modern Traveller

The Timex Atelier GMT24 M1a brings clarity and proportion to one of watchmaking’s most enduring functions. Every surface is deliberate, each detail shaped to balance depth and wearability. At its core is the Swiss-made Landeron 24 GMT automatic movement, revealed through an exhibition caseback, with a fourth hand marking time across borders. This is not a jet-age revival. It is time, refined for the traveller’s wrist.

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Specifications

Product ID

TW2Y72300

Swiss Automatic GMT Movement

Crafted in Switzerland, this self-winding movement is powered by your motion as you wear the watch and features an additional 24-hour hand that can be used to track a second time zone.

Skeletonized Stainless Steel Case

Crafted of tarnish-free stainless steel, the skeletonized case is reinforced by a plated steel mid-case.

  • Case Diameter 40 mm
  • Case Height 12.7 mm
  • Case Material Stainless Steel
  • Case Color Stainless Steel
  • Case Finish Brushed
  • Dial Color Black
  • Dial Markings Markers (Full)
  • Battery Type Automatic

Self Adjustable Stainless Steel Bracelet

Thanks to removable links, this stainless-steel bracelet makes resizing simple so you can tailor the fit in seconds.

  • Band / Lug Width 20 mm
  • Band Material Stainless Steel
  • Band Color Stainless Steel
  • Band Buckle Clasp (Butterfly Deployant)

Glass-Box Sapphire Crystal

With exceptional scratch resistance, the sapphire crystal lens is as hard and clear as a gemstone. The glass-box sapphire crystal—a raised, distinctive domed glass design—creates a lens-like effect that enhances dial clarity and adds captivating depth.

Water Resistant to 100 Meters

This watch is suitable for swimming, snorkelling, poolside diving or surfing. It is not suitable for scuba diving. To maintain water resistance, do not press any buttons while underwater.

100m

Water Resistance

This watch is suitable for swimming, snorkelling, poolside diving or surfing. It is not suitable for scuba diving. To maintain water resistance, do not press any buttons while underwater.

30m

Light rain, sweat & splashes.

Icon of a cloud with raindrops on a blue background

50m

Short swims.

100m

Swimming, snorkeling & surfing.

200m

Recreational scuba-diving.

Diver icon on a blue background

GMT Function

A GMT watch allows you to track multiple time zones at once. This feature is popular among travelers, as it allows you to set a “home” time zone for quick reference.

Swiss Luminova

Swiss Luminova in-fill charges quickly in light and provides a glow in low-light conditions.

Enamel Dial

Enamel dial offers a deep glossy finish created using a high temperature firing process.

Details That Emerge

Try It On

Case Width 40mm

Case Width 40mm

Try It On

Case Width 40mm

Wrist Size (in)

Your Wrist Size Circumference (in)

Band Size

The band for this watch can be adjusted to fit comfortably between the following wrist circumferences.

150 - 205mm (5.9 - 8.1in)

Wrap a garment measuring tape snuggly around your wrist just below the wrist bone. Alternatively use a piece of string and then measure the string length with a ruler. The average wrist size for men is 6.5-7.5", and for women is 5.5-6.5".

How to choose the right case size

Case diameter determines the watch size: it’s the width of the watch case, excluding the crown. Small wrists (<6") suit 28–36mm, average (6–7") fit 36–42mm, and larger wrists (7"+) can wear 42mm+. Smaller cases can feel refined or vintage-inspired, while larger ones make a bold, modern statement.


Read Our Watch Size Guide

Wrist Size (in)

Your Wrist Size Circumference (in)

Band Size

The band for this watch can be adjusted to fit comfortably between the following wrist circumferences.

150 - 205mm (5.9 - 8.1in)

How to measure your wrist size

Wrap a garment measuring tape snuggly around your wrist just below the wrist bone. Alternatively use a piece of string and then measure the string length with a ruler. The average wrist size for men is 6.5-7.5", and for women is 5.5-6.5".

How to choose the right case size

Case diameter determines the watch size: it’s the width of the watch case, excluding the crown. Small wrists (<6") suit 28–36mm, average (6–7") fit 36–42mm, and larger wrists (7"+) can wear 42mm+. Smaller cases can feel refined or vintage-inspired, while larger ones make a bold, modern statement.


Read Our Watch Size Guide

A Legacy Of Modernity

Timex Atelier is for those who appreciate subtlety, proportion, and modern design, grounded in decades of expertise. It is our invitation to experience luxury the Timex way.

“Timex Atelier Is Designed To Be Discovered, Slowly, Over Time.”

— Giorgio Galli, Chief Creative Director, Timex Group

Engineered to Move

Side profile of the Timex Atelier GMT Automatic showing the slim stainless-steel case, signed crown, and architectural case design.
Close-up of the Timex Atelier GMT dial in monochrome, focusing on the polished hands and typography details.
Front view of the Timex Atelier GMT Automatic highlighting its black dial, orange GMT hand, and brushed steel bracelet with a motion blur effect.
Disassembled Timex Atelier GMT components laid out on a technical grid, showcasing the watch’s case, dial, bezel, and movement parts.
A minimalist image of the Timex Atelier watch case silhouette standing upright on a reflective grid surface.
Artistic black-and-white shot of the Timex Atelier GMT Automatic watch viewed head-on with a motion effect emphasizing precision and craftsmanship.

The materials we have selected for each piece capture our commitment to quality and the expression of a design language that speaks for itself.