Before 2025, you could’ve asked anyone in the watch community about Bremont, and they would’ve most likely expressed a great respect for Bremont’s aviation-themed chronometers for their durability and commitment for keeping everything U.K.-made. However, the debut of the Terra Nova Jumping Hour at last year’s Watches & Wonders in Geneva came out of nowhere, and even earned the brand some new fans.
The debut release in bronze sold out very quickly, and so the watchmaker began producing a non-limited stainless steel version. Now, the Terra Nova is back yet again with a Stealth Black variant, adding another level of intrigue to a timepiece that already blurred the line between field watch and haute horology.
Montre à Guichet, Reimagined
The jumping hour complication has been around since Josef Pallweber patented it in 1883, itself dating back to a 17th-century mechanism used in night clocks. We’ve talked a lot about the recent jumping hour revival in recent years, especially with the likes of Cartier’s Tank à Guichets reissue and even Audemars Piguet’s historically accurate recreation of a 1929 model. But Bremont’s take on the “montre à guichet” — French for “aperture watch” — feels particularly fresh.
Drawing from WWI trench watches that used metal grilles to protect fragile dials, the Terra Nova features a vertically brushed protective shield over the dial with three apertures cut into it. The jumping hour appears at 12 o’clock, a central running seconds hand sweeps over Bremont’s Wayfinder compass logo, and the minutes sit at 6 o’clock. It’s a layout that prioritizes legibility while nodding to early 20th-century military watches.
With the new Stealth Black edition, everything gets coated in black DLC — the 38mm cushion case, the bracelet, even the protective shield. The white Arabic numerals and lumed seconds hand pop against all that black, creating one of the most readable guichet watches out there. It’s also decidedly more tactical-looking than its bronze and steel predecessors, which gives the watch a different personality entirely.
British Engineering Meets Swiss Precision
Bremont worked with Sellita to develop the BC634 caliber exclusively for the Terra Nova collection. It’s a modified automatic movement that delivers the instantaneous hour jump in under one-tenth of a second — no small feat when you consider the amount of torque required to snap that hour disc forward without disrupting the movement’s accuracy. Running at 28,800 vph with a 56-hour power reserve, the BC634 uses a Glucydur balance wheel, Anachron balance spring, and Nivaflex mainspring. All solid, proven components, they hide behind a closed caseback featuring a globe motif in relief.
The Bund Strap Debate
The Stealth Black comes with two strap options: a DLC-coated steel bracelet or a black leather bund strap. Bund straps have always been divisive — they were originally designed to protect pilots’ wrists from watch temperatures during extreme heat or fires, but they can look a bit costumey on modern watches. Bremont’s version, however, works better than most. The all-black execution creates an unbroken visual flow from case to wrist, and the wider leather pad actually draws your eye to the dial’s center. If you’re not sold on it, the bund section is removable, leaving you with a standard black calfskin strap underneath.
The bracelet option is compelling too. The mixed brushed and polished finishes under the DLC coating give it an almost ceramic-like appearance, and both options feature a quick-release system.
Spec Sheet
Model: Terra Nova 38 Jumping Hour Stealth Black
Case Material: 904L stainless steel with black DLC coating
Case Size: 38mm
Case Thickness: 9.1mm
Lug-to-Lug: 44mm
Movement: Bremont Caliber BC634 (Sellita-based, jumping hour module)
Power Reserve: 56 hours
Water Resistance: 30m
Lume: Super-LumiNova on hour numerals and seconds hand
Strap: Black DLC steel bracelet or black calfskin bund strap (removable) with quick-release system
Pricing & Availability
The Terra Nova 38 Jumping Hour Stealth Black is available now as a permanent addition to the collection. Pricing sits at $5,200 on the bund strap and $5,650 on the DLC bracelet — a modest premium over the standard steel version.
Recap
Bremont Terra Nova Jumping Hour Stealth Black
Bremont just dropped a blacked-out DLC version of their Terra Nova Jumping Hour, and the all-black treatment actually makes the guichet display way more legible while giving the watch a completely different, more tactical vibe. It’s available now for $5,200 on the bund strap or $5,650 on the matching DLC bracelet.
