March LA.B Mansart Golden Hour Petite Seconde 2-dial automatic watch with black leather strap, 35 mm

The essentials

• Octagonal case 35 x 39 mm, 3-micron gold-plated – Guilloché dial in gold or green – Anti-reflective sapphire crystal
• Swiss automatic movement La Joux-Perret G121 – Small seconds – 68-hour power reserve
• Black alligator strap – Water resistance 5 ATM – Assembled in Besançon

Between golden classicism and geometric modernity

Inspired by the Place Vendôme and the architecture of Jules Hardouin-Mansart, the MANSART Golden Hour perfectly embodies the aesthetic signature of March LA.B. With its 35 mm octagonal case, gold-plated (3 microns), this jewelry-like watch blends French refinement with Swiss precision in a design that’s both heritage-inspired and boldly modern. The absence of lugs, the integrated black alligator strap and the crown positioned at 4 o’clock reinforce the watch’s assertive geometric identity.

Its horizontally guilloché dial, delivered in both light gold and signature green versions, gives this timepiece a versatile dual personality. Thanks to a long-lasting interchangeable system, the dial can be changed depending on the mood or occasion. The minimalist hands and discreet hour markers ensure perfect legibility, while the small seconds subdial at 7 o’clock adds a subtle yet distinctive touch.

A Swiss movement for French elegance

The MANSART is powered by the automatic G121 movement from La Joux-Perret, renowned for its reliability and extended power reserve. Offering up to 68 hours of autonomy, it partially reveals itself through a skeletonized green sapphire caseback, a nod to the brand’s visual DNA. Fully assembled in France, in the Besançon workshops, this watch masterfully combines horological precision and sensual elegance. Water-resistant to 5 ATM, it’s built to follow the modern man from day to night, for both everyday wear and formal occasions.