Baume & Mercier Riviera Chronograph Day-Date 41mm
At Watches and Wonders 2025, Baume & Mercier launched two new Riviera Chronograph Day-Date 41mm models (M0A10825 and M0A10826) along with the new Riviera Flyback Chronograph (M0A10828) and Riviera Chronograph 43mm (M0A10827).
Baume & Mercier Riviera Chronograph M0A10825
This model, resembling the existing 43-mm version, joins the collection in a 41-mm diameter with a thickness of 13.94 mm. Reworked for a sleeker fit, its dodecagonal satin-finished stainless steel case is protected by a scratch-resistant sapphire crystal treated with an anti-glare coating on both sides.
The equally dodecagonal bezel in polished and sun-satin stainless steel, as well as the twelve-sided case back with its sapphire crystal, are secured with four screws. The case back may be custom-engraved. The free octagonal crown is crafted in steel, highlighting the House’s embossed Phi logo, the symbol of balance and quality crafting.
Set against a black wave decor backdrop with an azure flange and counters, the features visually stand out in alternating finer and thicker lines: the Roman numerals and riveted rhodium-plated indexes coated with white Superluminova (C1, blue glow), the faceted rhodium-plated hour and minute hands coated with white Superluminova (blue glow), the rhodium-plated counter hands, the hand of the counter at 9 o’clock coated with white Superluminova (blue glow), and the day and date apertures at 3 o’clock.
The functions are driven by a self-winding movement with a 48-hour power reserve that oscillates at a frequency of 4 Hz (28,800 vph). The piece is water-resistant to 10 ATM (approximately 100 m).
The interchangeable strap visually extends this fully satin-finished stainless steel design. It may be changed without the need for tools thanks to a very robust, reliable mechanism. Its triple folding clasp with security push-pieces is also crafted in stainless steel.
Baume & Mercier Riviera Chronograph M0A10826
The blue version of this model, which exists in 43mm and has been reworked to refine its proportions, is now available in a 41 mm diameter with a thickness of 13.94 mm. The finishes play on the subtle blend of its blue sun-satin dial, featuring a wave decor, an azure flange, and azure counters.
The interplay of Roman numerals and riveted rhodium-plated indexes, coated with white Superluminova (C1, blue glow); the faceted rhodium-plated hour and minute hands and the counter hand at 9 o’clock, all coated with white Superluminova (blue emission); the rhodium-plated counter hands; and the day and date windows at 3 o’clock come together in a harmonious, elegant dynamic, offering a clear, delightful readability that showcases the meticulous craftsmanship of the dial.
In these luminous tonalities, the satin-finished stainless steel case radiantly reveals its twelve sides. The scratch-resistant sapphire crystal protecting it is treated with an anti-glare coating on both sides. The bezel, crafted in polished and sun-satin stainless steel, is secured by four screws, as is the dodecagonal case back, also protected by a sapphire crystal. The case back may be custom-engraved by request. The free octagonal steel crown is stamped with the embossed Phi logo.
The timepiece offers a 38-hour power reserve, oscillates at a frequency of 4Hz (28,800 vph), and offers water-resistance to 10 ATM (approximately 100 m).
In satin-polished stainless steel, its integrated three-row steel strap features a robust, very reliable interchangeability mechanism that makes it possible to change straps without the use of tools. The triple folding clasp with security push-pieces is crafted in stainless steel.
Model: Baume & Mercier Riviera Chronograph Day-Date 41mm, M0A10825 and M0A10826
Movement
Automatic (Valjoux 7750)
Power reserve: 48h
Jewels: Frequency: 4 Hz (28’800 vph)
Thickness: 7.9 mm
Functions
Small seconds, chronograph, day, date
Case
Polished and satin-finished stainless-steel case
Shape: Dodecagonal
Diameter: 41 mm
Thickness: 13.94 mm
Antiglare (2 faces) scratch-resistant sapphire crystal
Sun satin-finished and polished stainless-steel bezel equipped with 4 screws
Sapphire dodecagonal case back secured with 4 screws
Octogonal free crown with Phi logo embossed
Water resistance: 10 ATM (approx. 100m)
Dial (reference M0A10825)
Sun satin-finished black and waves decor with snailed counters and snailed minute track
Riveted Roman numerals and indexes coated with Superluminova (blue emission)
Faceted rhodium-plated hands, H/M coated with white Superluminova (blue emission)
Rhodium-plated counters hands
Hands in the counter at 9 o’clock with white
Superluminova, blue emission)
Day and date apertures at 3 o’clock
Dial (reference M0A10826)
Sun satin-finished blue and waves decor with snailed counters and snailed minute track
Riveted Roman numerals and indexes coated with Superluminova (blue emission)
Faceted rhodium-plated hands, H/M coated with white Superluminova (blue emission)
Rhodium-plated counters hands
Hands in the counter at 9 o’clock with white Superluminova, blue emission)
Day and date apertures at 3 o’clock
Bracelet
Integrated 3-row polished and satin-finished stainless-steel
Interchangeable system that allows to change the bracelet without any need for tools
Triple folding stainless steel buckle with security push-pieces
