At Dubai Watch Week 2025, Bremont is updating its much loved models in Terra Nova and Altitude line: the new Terra Nova 40.5 Jumping Hour Aventurine and the Skeletonised Altitude Perpetual Calendar GMT Monopusher. 

The limited-edition Terra Nova 40.5 Jumping Hour Aventurine, only 50 pieces worldwide, debuts a deep blue Aventurine glass dial, manufactured by cutting the glass with diamond tools before hand-polishing it to achieve a uniform surface. The dial is secured to a metal backing plate to ensure structural stability and thermal resistance — an important consideration given the fragility of glass-based materials. Complementing the dial is Bremont’s first delicately grained 904L steel case. 

The surface is treated to create a textured, micro-faceted appearance that interacts with light. Beyond its aesthetic effect, the graining enhances scratch masking while maintaining the corrosion-resistant properties associated with 904L steel. There is an hour window at 9 o’clock adjacent to a minutes retrograde window. Hours numerals are coated white Super-LumiNova®. There are printed markers at 12, 3, 6 and 9 o’clock with a silver printed minute track. The central second hand is also coated with full white Super-LumiNova®. Powering this watch is the Bremont calibre BC634, developed in partnership with Sellita. The movement offers 56-hour power reserve, and delivers instantaneous hour change in under one tenth of a second. It is paired with a blue leather strap. 

Alongside this release, the UK based brand also presents a new skeletonised edition of the Altitude Perpetual Calendar GMT Mono-pusher, designed around the Agenhor-developed movement, BHC9192, first introduced in the Altitude line at Watches & Wonders 2025. It is crafted from Grade 2 titanium and built around Bremont’s signature three-piece Trip-Tick® case construction; it stays true to the Altitude line’s aviation-inspired sportiness. 

At the heart of this new model is a fully openworked dial that reveals the intricate mechanisms beneath. Decorative Air Force Blue structural arms support the subdials. At 12 o’clock, a domed globe disc — reminiscent of the display used in the 2024 Terra Nova Dual-Time Tourbillon — delivers a second time-zone indication. As the globe rotates, an arrow marks the home time across a 24-hour day-night scale. Setting this function is simple: a mono-pusher integrated into the crown advances the arrow in one-hour steps. Additional correctors at 2 and 4 o’clock allow for adjustment of the date, month, and leap-year cycle. The display at 9 o’clock brings an aviation touch, with a lume-tipped double-blade ‘propeller’ hand marking the running seconds over a sector-style subdial. The date is indicated by a pointer at 6 o’clock and at 3 o’clock, a month/year display uses a four-blade propeller-style hand — three white-tipped and one red-tipped. The dial is divided into four sectors representing the four years of the leap year cycle, with the first sector doubling as the month's display. The red blade marks the current year in the cycle, while the month is shown by whichever blade passes through the first sector. The hand advances in 172 micro-increments over four years — a movement of just 2.1 degrees every eight days. 

By skeletonising the dial, Bremont puts the architecture of the complication at view. Bridges finished with Côtes de Genève and a hand-engraved Wayfinder logo on the mono-pusher lever pay homage to traditional craftsmanship. The base calibre is the hand-wound AMT6900, created within Sellita’s specialist AMT (Atelier Manufacture Technique) programme. The combined movement measures just 6.8 mm, enabling the watch to maintain a sleek 12.65 mm case profile. It comes dressed in a quick release titanium bracelet & patina leather strap.