Jack Mason Strat-o-timer Frontier GMT: Alpine

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$1,099.00
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$1,099.00
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Description

Product Overview

The Strat-o-timer Frontier GMT is the ultimate traveler’s tool. Inside the watch is the Miyota 9075 GMT movement that features an independently jumping local hour hand, regulated in-house to +/- 5 seconds per day. The brushed, stainless steel bezel is engineered for toughness and pairs well with the fully brushed 7-link bracelet. The dial and handset both feature Grade A BGW9 to ensure long lasting glow in low light environments. With a vision of becoming a legacy brand in our home state of Texas, the Strat-o-timer is assembled, and the movement regulated, in the USA.

Adventure-Proof Bezel

The Frontier GMT’s stainless steel bezel insert is machined for toughness, not decoration. Its highly scratch-resistant surface is finished with a brushed sunray texture that catches the light without sacrificing durability. Black numerals and markings are set in reverse relief, ensuring legibility stays uncompromised.

Tracks Two Timezones

The mechanical, self-winding Miyota 9075 movement allows for accurately tracking two different timezones simultaneously. The traveler GMT functionality grants the ability to adjust the local time via the crown without affecting the 24 hour hand or stopping the watch. Every movement is regulated in-house to maintain an accuracy tolerance of +/-5 seconds per day.

Built from Hardened Steel

Constructed from 316L stainless steel and reinforced by a hardness coating, the Strat-o-timer is built to tackle adventure head-on. The signature cushion case features a blend of brushed and polished finishes that highlight the subtle curvature of the case. Each surface meets at a precisely defined edge that emphasizes the case architecture.

All-Brushed Bracelet

Built to perform day after day and engineered for long-term comfort, the bracelet is designed like a proper tool. The iconic 7-link bracelet is equipped to the Frontier GMT in brushed stainless steel. Its rugged, refined look seamlessly merges the case and bracelet in a way that feels durable and deliberate. Designed to be worn, not worried about.

Light Fades. Legibility Stays.

The Frontier GMT relies on Swiss Super-LumiNova® to stay legible even after nightfall. BGW9 luminous material fills the deep reservoir of each hour marker and is precisely applied to every hand. It emits a crisp blue glow in darkness, but maintains a clean white appearance in full daylight.

Micro-Adjust Clasp

The 316L stainless steel bracelet features a concealed, tool-free system for on-the-go micro-adjustments. The clasp has been carefully engineered with 9 levels of fine-tuning to ensure the perfect fit on a broad spectrum of wrist sizes. While being worn, all the clasp’s mechanics stay hidden out of view to preserve the bracelet’s refined and uniform look.


SPECIFICATIONS

Dimensions

Case Diameter: 40mm

Case Thickness: 13.2mm

Lug Width: 20mm

Lug to Lug: 47mm

Movement

Movement: Miyota 9075

Movement Type: Automatic Flyer GMT with Jump Hour

Features: Hours, Minutes, Running Second, GMT Hand, Date

Accuracy: +/-5 seconds per day (regulated by Jack Mason)

Jewels: 24

Rotor: Custom branded rotor

Vibration Frequency: 28,800 vph

Power Reserve: 42 hours

Case & Dial

Case Material: 316L Stainless Steel

Bezel: 48-Click, Stainless Steel

Crystal Type: Sapphire

Lume: Swiss Super-LumiNova®

Caseback: Sapphire Exhibition

Crown: Screw-down

Depth Rating: 20ATM, 200m

Weight: 165g (including bracelet)

Attachment

Material: 316L Stainless Steel

Width: 20mm > 16mm taper

End Links: Solid with quick-release

Clasp: On the fly micro-adjust

Compatibility: 20mm Straps 

Shipping & Delivery

Most items listed on our website are in stock and ready to ship. In the rare event that an item becomes unavailable after your order is placed, our team will contact you with the option to:

  • Wait for the item to be restocked.
  • Exchange it for another available product.
  • Receive a full refund.

Shipping

Shipping options, rates, and estimated delivery times are displayed at checkout based on your location and selected service.

Once your order has shipped, you will receive a confirmation email with tracking information.

Processing Times

Orders are typically processed within 1–2 business days.

Orders placed on weekends or holidays will be processed on the next business day.

Delivery times shown at checkout are estimates provided by the carrier and may vary due to weather, holidays, carrier delays, or other circumstances outside of our control.