![Bremont Watch Company Watches | Mens | Altitude Altitude Chronograph GMT [Silver, NATO]](http://www.bremont.com/cdn/shop/files/ChronographSilverNato17.webp?v=1743504969)
![Bremont Watch Company Watches | Mens | Altitude Altitude Chronograph GMT [Silver, NATO]](http://www.bremont.com/cdn/shop/files/ChronographSilverNato14.webp?v=1743504969)
![Bremont Watch Company Watches | Mens | Altitude Altitude Chronograph GMT [Silver, NATO]](http://www.bremont.com/cdn/shop/files/ChronographSilverNato13.webp?v=1743504970)
![Bremont Watch Company Watches | Mens | Altitude Altitude Chronograph GMT [Silver, NATO]](http://www.bremont.com/cdn/shop/files/ChronographSilverNato03.webp?v=1743504970)
![Bremont Watch Company Watches | Mens | Altitude Altitude Chronograph GMT [Silver, NATO]](http://www.bremont.com/cdn/shop/files/ChronographSilverNato15.webp?v=1743504970)
NEW 2025
Altitude Chronograph GMT
- Regular price
- £5,500.00
- Regular price
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- Sale price
- £5,500.00
0% Finance available from £137.50
Estimated delivery in June 2025. We will contact you directly if for any reason delivery may take longer.
Automatic, 42mm, 904L Stainless Steel
The Altitude Chronograph GMT is the ultimate pilot's tool watch — a mission-ready timepiece built for exploration, travel, and demanding environments.
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Delivery & Returns
GENERAL
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- As part of our commitment to delivering exceptional quality, some watches are individually hand built upon order. This means your timepiece may have a delivery lead-time. You can find details about this and what to expect on each product page
- Tracking is available for all shipping services. Please allow up to 7 days for tracking information to be available for European and International orders
UNITED KINGDOM
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- Free delivery on all orders
- Please allow 1-2 working days for delivery after dispatch
- Most orders are dispatched within 2 working days, unless a lead-time is specified
- Shipping via DPD or DHL for watches and Royal Mail Tracked 24 for accessories
EUROPE
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- Free delivery on orders over €100
- Please allow 7-10 working days for delivery
- No additional charges; import duties and taxes are covered
- Shipping via DHL with trusted and renowned Bremont partner Care of Carl in Sweden
REST OF WORLD
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For delivery to the United States and Australia, please visit us.bremont.com and au.bremont.com, respectively.
- Free delivery on orders over £2000
- Please allow 7-10 working days for delivery
- No additional charges; import duties and taxes are covered
- Shipping via DHL
Learn more about our delivery policy
RETURNS
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You must notify Bremont of your intention to return an item within 30 days of receipt. Conditions apply.
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UP TO 5-YEAR WARRANTY
At Bremont, we’re proud to build watches that Take It Further. And our International Warranty goes further too.
All Wayfinder logo timepieces from April 2024, including those from our 2025 Altitude Collection, are eligible for an extended warranty from 3 to 5 years, offering added peace of mind for the journey ahead.
Registration required. Learn more.
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DOWNLOAD A BROCHURE
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Proudly made in the UK
Great Britain has a wonderful history when it comes to watch making and has probably been the home to more advances in horology than any other nation. Bremont is determined to play a pivotal role in the reinvigoration of this industry on British shores. Every Bremont is hand built and tested before leaving the Henley-on-Thames workshop.
Description
The Altitude Chronograph GMT is the ultimate evolution of Bremont’s aviation tool watch — combining the proven resilience of the MB series with the added functionality of a chronograph and GMT complication.
Housed in a 42mm Trip-Tick case made from ultra-rugged 904L stainless steel, with a black DLC-coated centre barrel, the watch has been engineered to withstand the harshest conditions. Inside, the chronometer-rated BC781 movement delivers a 62-hour power reserve and features a quick-set date, hacking seconds, and independent GMT hand.
Beneath the surface, the automatic movement is suspended within a flexible rubber mount to absorb shocks and minimise impacts. The Altitude Chronograph GMT has an open case-back, revealing the movement’s fine finishing in gunmetal grey with Geneva Stripes. The open case-back retains the anti-magnetic shielding, which is provided by a soft iron ring around the movement, based on Faraday Cage principles.
The dial design is clean, legible, and cockpit-inspired, with applied Super-LumiNova® numerals and indexes, and recessed chronograph subdials. A red-tipped GMT hand tracks a second time zone against a 24-hour day/night scale, while the rotating seconds subdial at 9 o’clock takes the form of a tri-blade propeller — a nod to a Bremont military project.
![Bremont Watch Company Watches | Mens | Altitude Altitude Chronograph GMT [Silver, NATO]](http://www.bremont.com/cdn/shop/files/ChronographSilverNato17.webp?v=1743504969&width=1000)
Tech spec
The finer detail you’ll want to know...
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Movement
BC781AC movement
25 Jewels
Glucydur balance wheel
Anachron balance spring
Nivaflex mainspring
28,800bph (4Hz)
62-hour power reserve
Decorated Bremont rotor -
Functions
Central GMT/Hour/Minute
Chronograph centre sweep seconds hand
Small seconds counter at 9 O'clock
Chronograph small counters with 30 minutes counter at 12 O'clock and 12 Hour counter at 6 O'clock
Date at 6 O'clock -
Case
Satin & polished 904L stainless steel Trip-Tick case construction with Brushed Black DLC barrel.
Inner anti-magnetic movement protection ring.
Protective anti-shock movement mount.
Case Diameter: 42mm
Case Length: 49.62mm
Case Depth: 14.7mm
Lug width: 22mm -
Case Back
Decorated 904L stainless steel open case back
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Dial & Hands
Brushed Silver Galvanic metal dial including:
Numerals and Indexes filled with white Super-LumiNova® (Blue emission).
Grey and Silver Day and Night 24 hour dial ring.
Brushed sub-dial at 9 O'clock, 12 and 6 O'clock Sub-dials with fine CD Lines
Gloss Black Hour and Minute hands, filled with white Super-LumiNova® (Blue emission)
Gloss Black chronograph sweeping seconds hand
Red tipped GMT hand, filled with white Super-LumiNova® (Blue emission)
Gloss Black 12 and 6 O'clock sub dial hands
Gloss Black Propeller design Running Seconds hand at 9 O'clock with white Super-LumiNova® tips -
Crystal
Glass Box anti-reflective sapphire crystal.
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Water Resistance
10 ATM, 100 metres.
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Strap
Black and anthracite NATO strap
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Weight
88.8g (watch head only)
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Rating & Certification
Chronometer rated to ISO 3159 standard
Trip-Tick Case Construction
Bremont’s signature Trip-Tick case construction, a reinforced three-part construction with a top case and case back sandwiching a knurled central barrel. The three-part design features a slimmed-down profile and reduced lug-to-lug distance for improved ergonomics.
Anti-shock & Anti-magnetic
Inside the case, the movement is suspended within a flexible rubber mount to absorb shocks and minimise impacts. Surrounding it, a soft iron ring provides anti-magnetic protection based on Faraday Cage principles — ensuring precision and reliability even in the most hostile environments.
Chronograph and GMT Functionality
The Altitude Chronograph GMT combines two essential functions for pilots and travellers alike – a precise chronograph and a second time zone display. The GMT hand is tipped with Bremont’s signature red arrow, while the running seconds subdial features a rotating tri-blade propeller motif, inspired by a Bremont military project.
Applied Stencil Design Numerals
The dial features applied stencil-style numerals and indexes, combining military-inspired design with modern clarity. Enhanced with the latest generation Super-LumiNova®, these elements ensure optimal legibility in low light.
Chronometer-Rated BC781 Automatic Movement
The Altitude Chronograph GMT is powered by the chronometer-rated BC781 automatic movement, delivering a 62-hour power reserve alongside precise chronograph and GMT functionality. Finished in gunmetal grey with Geneva Stripes, the movement is visible through an open case-back.
