The Baltic x SpaceOne Seconde Majeure brings together Baltic’s vintage-leaning design language, SpaceOne’s futuristic approach and Théo Auffret’s movement work in a compact jumping-hour watch. Offered with either a brushed or hand-finished charbonné German silver mainplate, it will be available for pre-order from May 12 to May 17, 2026, with prices starting at EUR 2,500 before taxes.
A collaboration with two very different design instincts
Baltic and SpaceOne occupy different corners of the contemporary watch scene. Baltic, based in Paris and established in the mid-2010s, is known for accessible, well-proportioned watches with vintage references, including divers, chronographs, dress watches and field-style models.
SpaceOne is a younger project from Paris-based watchmaker and movement designer Théo Auffret and Guillaume Laidet, who is also associated with the return of Nivada Grenchen. Its watches lean into a more science-fiction-inspired visual identity.
The Seconde Majeure is the point where those approaches meet: a traditionally sized steel case, a display architecture that feels more experimental, and a mechanical module built around a jumping-hour indication.
A 38.5mm case in 904L stainless steel
The watch uses a new 904L stainless steel case measuring 38.5mm in diameter, 12.3mm thick and 47.5mm lug-to-lug. It combines brushed and polished surfaces, with a brushed case middle and a polished concave bezel.
The lugs are long, arched and include a polished concave recess on the side. A crown at 12 o’clock gives the watch a more modern and unusual profile, while the top is fitted with a single-domed sapphire crystal with anti-reflective coating.
The back is a stepped, closed steel caseback, and water resistance is rated at 50 metres. The lug width is 20mm.
The display is built around sapphire discs
The Seconde Majeure does not use a conventional dial in the usual sense. Instead, the mainplate of the complication module serves as the visible surface.
Time is shown through a decentralised display using sapphire crystal discs. The jumping hour appears in a framed aperture at 12 o’clock. Minutes are shown on an oversized dragging disc at 6 o’clock, read against an arched scale with an arrow-ended crosshair. A long blue central seconds hand runs over the display, with a separate white peripheral seconds track.
The typography used on the hour and minute discs follows SpaceOne’s futuristic style, while the overall proportions and case format keep the watch closer to Baltic’s restrained design vocabulary.
Two German silver finishes
The visible mainplate is made from a single piece of maillechort, also known as German silver, giving it a warm light-gold tone. Buyers will be able to choose between two finishes.
- Brushed finish: a straight-brushed treatment and the more accessible of the two versions.
- Charbonné finish: a hand-applied scratched pattern carried out by watchmakers at Théo Auffret’s Paris atelier. The process can take up to three hours and creates a different surface pattern on each watch.
Théo Auffret’s jumping-hour module
The display is driven by a module developed by Théo Auffret. Its construction centres on a wheel beneath the minute disc that completes one rotation every 60 minutes.
At the top of the hour, this wheel engages a 12-tooth star wheel under the hour disc. A visible jumper spring holds the star wheel in position and also enables the hour jump. Energy accumulates over the course of the hour, then the disc advances when the spring drops into the next tooth.
The base movement is the Swiss-made Soprod P024 automatic calibre, an alternative to movements such as the ETA 2824 and Sellita SW200. It runs at 4Hz and offers approximately 42 hours of power reserve.
Strap, pre-order window and pricing
The watch is delivered on a beige Alcantara strap by Delugs, fitted with curved spring bars and a steel pin buckle.
Pre-orders are scheduled from May 12 to May 17, 2026. Production is not assigned a fixed numbered cap, but it will be determined by the number of orders placed during that six-day period.
- Brushed dial version: EUR 2,500 before taxes.
- Charbonné dial version: EUR 3,500 before taxes.
For Baltic, the Seconde Majeure sits at a higher price level than many of its previous watches. For the specification, the unusual time display and the hand-finished option, it positions the collaboration as an accessible entry into some of the codes more often associated with independent watchmaking.

