Key Highlights
- Flying tourbillon at 6 o’clock, secured from the back and completing one rotation per minute
- BHC91180 hand-wound skeleton movement developed in collaboration with La Joux-Perret — 60-hour power reserve, −5/+5 seconds daily rate
- 41mm case in 904L stainless steel with DLC-coated middle, screw-less architecture, and black ceramic bezel
- Openworked dial with anthracite skeletonised bridges inlaid with dark blue Super-LumiNova® and a 10.72mm slim profile
- Bremont branding applied to the underside of the sapphire crystal, creating a floating effect above the calibre

Architecture Before All Else
Bremont‘s Supernova collection has always drawn its identity from structure rather than ornament. The Supernova 41mm Tourbillon sharpens that proposition considerably, presenting a case built from 904L stainless steel — the same corrosion-resistant alloy favoured in the most demanding tool-watch traditions — with a DLC-coated case middle that absorbs light where the polished and brushed steel surfaces reflect it. The result is a deliberate interplay of matte and luminous planes, each shaped by the geometric design language that the collection describes as inspired by space exploration. At 10.72mm deep and 41mm across, it wears with a confidence that is earned by restraint.
The screw-less case construction distinguishes the architecture further. Where conventional cases rely on visible case-back screws or straightforward snap-fits, Bremont’s approach here is cleaner in both engineering and aesthetic terms. The multi-faceted black ceramic bezel ring reinforces the angularity of the overall form, its hard, light-absorbing surface contrasting with the steel flanks. An integrated bracelet closes the design into a single coherent object — no visual interruption between case and bracelet — and a quick-release mechanism ensures the practicality that an everyday tourbillon demands. Explore more of Bremont’s space-influenced heritage via the Moon Mission I.
The Dial as Structural Statement
Skeleton dials occupy a wide spectrum, from the purely decorative to the genuinely mechanical. The Supernova Tourbillon’s openworked dial sits firmly at the latter end. Anthracite skeletonised movement bridges are arranged in a geometric structure that echoes the collection’s architectural identity, each bridge channel filled with dark blue Super-LumiNova® for legibility after dark. The blue minute track indexes on the black dial flange reinforce this nocturnal palette without softening the technical clarity of the overall composition.
The flying tourbillon at 6 o’clock is the natural focal point. A subtle sunray effect radiates outward from its position, directing the eye without resorting to applied decoration. The tourbillon cage completes one rotation per minute — visible in real time through the open dial — and is secured from the caseback rather than the dial side, which accounts for the unobstructed view of the mechanism from the front. Above everything, the Bremont logo is applied to the underside of the domed sapphire crystal, producing a floating effect that positions the brand mark between the movement and the observer. It is an uncommon detail, and one that rewards close inspection.

The BHC91180 — Precision Calibrated
At the core of the Supernova Tourbillon is the BHC91180, a hand-wound skeleton movement developed in collaboration with La Joux-Perret. The movement runs at 28,800 bph and carries 23 jewels. Its 60-hour power reserve is delivered with a daily rate tolerance of −5 to +5 seconds — disciplined performance for a flying tourbillon in a 41mm case. The movement is fully visible through both the dial and the decorated open caseback, offering two perspectives on the same technical proposition. This level of transparency is a commitment: every finishing decision on the movement is on permanent display. For context on major tourbillon releases that have shaped collector benchmarks, the annual Watches and Wonders showcase remains the industry’s primary reference point.

Why It Matters
The Supernova 41mm Tourbillon consolidates what Bremont has been building toward with the Supernova collection: a flying tourbillon housed in a case architecture that is as considered as the complication it carries. For GCC collectors who seek technically demanding pieces that hold their own against European haute horlogerie benchmarks, this calibre — co-developed, rigorously specified, and presented through an openworked dial designed for direct engagement — is a substantive addition to the field. The official Bremont collection can be explored at bremont.com.
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Frequently Asked Questions
What movement powers the Bremont Supernova 41mm Tourbillon?
The Supernova 41mm Tourbillon is powered by the BHC91180, a hand-wound skeleton movement developed in collaboration with La Joux-Perret. It features a 60-hour power reserve, runs at 28,800 bph, and maintains a daily rate tolerance of −5 to +5 seconds.
What makes the case construction of the Supernova 41mm Tourbillon distinctive?
The watch features a screw-less 904L stainless steel case with a DLC-coated middle section and multi-faceted black ceramic bezel. This engineered approach creates a cleaner aesthetic and structure without visible case-back screws, while the interplay of matte and polished surfaces reflects the collection’s space-exploration design language.
How is the tourbillon displayed in the Supernova 41mm Tourbillon?
The flying tourbillon is positioned at 6 o’clock and secured from the caseback rather than the dial side, allowing an unobstructed front view as it completes one rotation per minute. The anthracite skeletonised bridges are inlaid with dark blue Super-LumiNova® for visibility, and a subtle sunray effect radiates from the tourbillon cage.


