With the launch of the Altitude Collection, evolved from its celebrated MB aviation watches, Bremont is cementing it’s mission to craft the finest timepieces for Air, Land and Sea, mixing modern British elegance with durability, and style.
At the pinnacle of the collection stands the Altitude Perpetual Calendar GMT Monopusher.
Limited to 50 pieces, cased in lightweight titanium, both dials and casebarrels in evocative ‘Air Force Blue’, adding the enduring finesse of high horology to
the Altitude family’s rugged, MB-inspired DNA.
Built for those who demand refinement, resilience and practicality, the Altitude Perpetual Calendar GMT Mono-pusher unites two legendary complications in one
supremely robust, perfectly engineered timepiece, with a complication module exclusively devised by Agenhor, the celebrated Geneva atelier.
PERPETUAL PERFORMANCE
Bremont’s design team faced a key challenge: integrating a Perpetual Calendar with a GMT without compromising the Altitude Collection’s aviation-inspired
sportiness, everyday usability, and visual clarity. Their solution was an ingeniously efficient display, which presents complex information with exceptional readability,
while preserving the distinctive design language and durability of the Altitude range.
The 42mm case, made of lightweight grade 2 titanium, features the collection’s signature three-piece Trip-Tick case construction.
For the GMT, a domed disc at 12 o’clock with a globe decoration – echoing that previously seen in 2024’s Terra Nova Dual-Time Tourbillon – provides the second
time-zone indication: as the globe turns, an arrow indicates the home time against a 24-hour index that’s divided into day and night sections. Adjusting this is straightforward: a mono-pusher integrated into the crown allows the wearer to advance the arrow in one-hour increments. A corrector at 2 o’clock allows you to set the date, whilst a corrector positioned at 4 o’clock allows you to set the leap year and month.
At 9 o’clock, running seconds is displayed with a two-blade ‘propeller’ hand, on a sector-style subdial with Bremont’s Wayfinder logo at its centre.
The perpetual calendar’s indications – date, month and position in the leap year cycle – are presented on the other two subdials, at 3 o’clock and 6 o’clock
respectively.
At 6 o’clock, a pointer indicates the date on a circumferential index. At the 3 o’clock position, a beautifully intuitive month/year indication uses a four-blade propellerstyle
hand, with three white-tipped blades and one red-tipped blade.
The subdial is divided into four sectors, each representing a year in the leap cycle, while the first sector also includes markings for the 12 months. The red-tipped blade denotes the current position in the four-year cycle, while the month is shown by whichever of the four blades is passing through the first sector at any given time.
The propeller’s movement is imperceptible, advancing in 172 micro-jumps across the four-year cycle – a shift of just under 2.1 degrees every eight days.
ENGINEERED FOR ADVENTURE
To realise this dynamic and highly unusual combination, Bremont worked with Agenhor, one of Switzerland’s most lauded horological ateliers; and with Sellita, a
leading movement manufacturer.
Founded in 1996 by horological visionary Jean-Marc Wiederrecht and now led by his sons, Laurent and Nicolas, Agenhor has earned numerous accolades for its groundbreaking innovations, featured in timepieces from esteemed brands such as MB&F, H. Moser & Cie, and Hermes.
Exclusively for Bremont, Agenhor has devised a slim and highly economical module integrating the perpetual calendar and GMT functions, which offers ease in operation, whilst meeting the Altitude Collection’s stringent requirements for endurance and dependability.
“The combination of a perpetual calendar and GMT function is extremely rare in watchmaking, but for Bremont it gives us the perfect mix of classical sophistication and adventurousness. We love the idea that it’s quite unusual but also really useful,” says Bremont CEO Davide Cerrato. “But it had to be as robust as any of the Altitude watches, easy to use, and present a durable, sporty execution of a Perpetual Calendar GMT – it’s intended as an everyday watch, not a delicate item that lives in the safe. That was our brief to Agenhor, who I think are amongst the best specialists working in Switzerland today.”
At the heart of the watch is a manually wound base calibre from Sellita, the AMT6900. This is crafted within Sellita’s top-tier, custom-build AMT (Atelier Manufacture Technique) programme, and designed to the highest standards of precision and finishing. The baseplate and bridges, designed with graceful symmetry, display a ‘soleillage courbe’ – or curved sunray – finish, contrasting with polished screw-heads and wheels that combine snailed and polished finishing.
The Bremont ‘Wayfinder’ logo is laser engraved on the ratchet wheel. The entire mechanism, consisting of both the base movement and the complication module, stands at just 6.8mm thick, keeping the entire watch to a highly wearable 12.65mm thick. Finally, the movement features a Côte de Genève finish and an engraved Bremont logo with a ruthenium treatment.
Thanks to its fine engineering, the Altitude Perpetual Calendar GMT Mono-pusher delivers a power reserve of 50 hours. This ensures the unwavering performance of a complex wristwatch conceived to endure decades – if not centuries – of usage.
AERIAL ELEGANCE
The Altitude Perpetual GMT combines this innovative functionality with true elegance, following the aviation-inspired design codes of the Altitude Collection.
The dial is in ‘Air Force Blue’ – also known in Italy as ‘blu aviazione’ – a richly nuanced shade long associated with aviation, and inspired by the blue-grey uniforms of Britain’s Royal Air Force. This has been given a smart vertically brushed finish, reminiscent of mid-Century vintage watches, which provides a rich contrast with the black tonality of the chapter ring and date sub-dial. The Air Force Blue is repeated in the brushed PVD coating of the centre barrel of the Trip-Tick case, standing out from the titanium top and bottom sections.
As a watch designed for everyday wear, both comfort and ease of operation are critical factors. Along with the crown-based mono-pusher for adjusting the GMT, recessed correctors at 2 and 4 o’clock allow for effortless adjustments of the calendar functions while maintaining a streamlined case profile, without the need for more complex intervention.
With only 50 pieces available, the Altitude Perpetual Calendar GMT introduces a dynamic and exciting new chapter in Bremont’s aviation lineage. Priced at £33,500, it delivers exceptional value in the realm of high complications, while offering rarity, ingenuity and masterful craftsmanship in a supremely wearable and accessible aviation tool watch.
