Altitude Skeletonised Perpetual Calendar GMT

At the pinnacle of Bremont’s Altitude Collection stands the Skeletonised Perpetual Calendar GMT Mono-pusher — a rare and refined timepiece limited to just 50 pieces worldwide. Housed in a lightweight 42mm Trip-Tick titanium case, with a brushed ‘Air Force Blue’ skeleton dial and case barrel, this watch combines two prestigious complications in a design rooted in aviation utility and everyday wearability.

The skeletonised blue dial reveals the full architecture of the Perpetual Calendar GMT Mono-pusher’s Agenhor-developed module, transforming the watch into a showcase of mechanical depth and contemporary precision. Open-worked to expose the bridges, finishing and interplay of components beneath, the dial is reinforced with Air Force Blue structural arms that preserve rigidity while enhancing legibility across the subdials. The rotating globe at 12 o’clock, radial date display at 6, intuitive month/leap-year propeller at 3, and propeller-style running seconds at 9 are all presented with exceptional clarity, delivering a rare combination of technical transparency, everyday usability and striking visual impact. Despite its mechanical complexity, all functions are easily adjusted via an integrated mono-pusher crown and discreet correctors. 

Crafted to deliver enduring performance and refined precision, the Altitude Perpetual Calendar GMT is finished with a glassbox sapphire crystal and is offered on both a titanium bracelet and patinated blue leather strap. A showcase of British design, Swiss horological mastery and high complication craftsmanship — built for those who appreciate the rare and exceptional.