Bremont just dropped something quietly wild: two new Jumping Hour models in its Terra Nova field watch collection. For a brand that built its name on rugged aviation watches and solid case engineering, this move into classic horological territory—with a twist—is a bit unexpected, and pretty welcome. Especially when the execution is this sharp.
This is the first time Bremont’s gone in on the Jumping Hour, and instead of playing it safe, they went for two very different takes: a vintage-looking bronze 38mm at $5,650 and a sleek, modern 40.5mm in polished 904L steel at $4,300. Same clever movement. Totally different vibe.
What’s a Jumping Hour, and Why Should You Care?
The Jumping Hour isn’t new—it’s been around since the 19th century—but it’s still rare. Most brands don’t touch it. It looks simple on the dial, but getting that hour disk to snap into place the instant the minute hand hits :60? Not easy.
Bremont partnered with Sellita to develop a new high-torque calibre, the BC634, just for this purpose. It’s got 29 jewels, a 56-hour power reserve, and a smooth 28,800 bph beat rate. And the actual jump? It happens in under a tenth of a second.
Terra Nova 38mm Jumping Hour – Bronze and Bold
This one leans into early 20th-century trench watch aesthetics. The cushion-shaped case is made from cupro-aluminium bronze, which means it’ll pick up a unique patina the more you wear it. The dial is split into three apertures—for hour, minute, and small seconds—executed in a clean, linear “Montre à guichet” layout. It’s a modern take on a classic military tool, but without trying too hard.
Details like the compass-style seconds hand and vertically brushed case finish give it some grit, while the quick-release strap options (a matching bronze bracelet or box-stitch leather) keep things flexible. It’s limited to 100 pieces, so if you’re into the smaller size and want that patina, don’t wait around.
Terra Nova 40.5mm Jumping Hour – Steel, Gloss, and Modern Lean
The 40.5mm version trades bronze for 904L stainless steel, swaps the military look for a glossy black dial, and feels way more modern. It’s still a cushion case, still has the same jumping hour movement, but the design plays cleaner and more minimalist. The hour and minute windows are arranged for a left-to-right read, which feels natural and keeps things balanced.
You get a lume-filled seconds hand, triangle markers, and Super-LumiNova across the board for nighttime legibility. Quick-release bracelet or black leather strap—your call. Water resistance jumps to 100 meters here, too, making this one a little more robust for everyday wear.
Final Thoughts
This is Bremont in experimental mode—but not in a gimmicky way. The Terra Nova Jumping Hour models blend traditional watchmaking with a clear-eyed sense of design. One leans vintage, one leans modern, but both show a brand willing to take risks and rethink what a field watch can be.
It’s a rare complication. It’s not showy. And it works. Whether you’re into bronze and patina or polished steel and gloss, there’s something here for watch nerds and collectors who like their complications low-key but well done.
