Kensington Watches
Baume & Mercier Riviera 42mm Mens Watch Black

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Baume & Mercier

Baume & Mercier Riviera 42mm Mens Watch Black

Ref. BM0A10617

Among our 40 Baume & Mercier watchesThis watch£3,950
Premium

Sits in Baume & Mercier’s upper tier here — more premium than three quarters of the Baume & Mercier watches we list, which start at £850.

Price range £850 to £4,450 across 40 Baume & Mercier watches in stock.

The Riviera shape dates to 1973, when Baume & Mercier introduced a twelve-sided case at a moment when the industry was learning that sport watches could carry genuine design ambition. This version updates that geometry in stainless steel finished with an amorphous diamond-like carbon coating — a process that produces the matte, near-black surface without the softness of conventional PVD, meaning it resists daily contact far better than the colour alone suggests. The smoked grey dial is translucent enough that the date ring beneath it reads as part of the architecture rather than an interruption, and at 10.66mm the case sits lower on the wrist than the 42mm width implies. The rubber strap is integrated into the case design and changes without tools, which matters more than it sounds on a watch this dressed-down — it means the pairing is considered rather than convenient. The Baumatic BM13-1975A running inside is built in-house, certified to chronometer tolerances, resistant to magnetic fields that would trouble most lever escapements, and winds to a five-day reserve, so Monday morning is rarely a concern.

Reference
BM0A10617
Brand
Baume & Mercier
Collection
Riviera
Case size
42mm
Case thickness
10.66mm
Lug width
20mm
Case material
Black PVD
Case shape
Octagonal
Dial
Grey
Crystal
Sapphire
Movement
Automatic
Calibre
BM13-1975A
Functions
Date
Water resistance
100m
Bracelet / strap
Rubber strap
Strap colour
Black
Clasp
Deployant clasp
Lume
Luminous
Retailer
Mappin & Webb
Additional specifications
Power reserve
120 hours
Strap
Interchangeable
Learn more about Baume & Mercier

The Baume brothers opened a watchmaking business in Les Bois in the Swiss Jura in 1830, and built a substantial export operation through a London office. The company won significant honours at nineteenth-century observatory trials, including a record for a chronograph tourbillon at Kew that stood for years.

The modern company dates from 1918, when William Baume partnered with Paul Mercier in Geneva. Mercier brought design sensibility, and the house's Art Deco pieces of the 1920s — shaped cases, jewelled dials, and the Phi emblem representing the golden ratio — established a decorative direction it has largely kept.

Baume & Mercier was among the founding members of the Geneva Seal system and produced complications including minute repeaters and perpetual calendars in its earlier decades.

Its modern position is deliberately accessible: classical Swiss watchmaking at prices below the group's luxury tier, with the Clifton, Riviera, and Hampton collections covering round dress watches, integrated-bracelet sports watches, and rectangular Art Deco shapes respectively. The Riviera, introduced in 1973, was among the first steel luxury sports watches with an integrated bracelet, arriving a year after the Royal Oak.

The house has been part of Richemont since the group's formation, and produces around two hundred thousand watches annually.

1830
The Baume brothers begin watchmaking in Les Bois.
1892
A Kew observatory record is set with a chronograph tourbillon.
1918
William Baume and Paul Mercier partner in Geneva.
1973
The twelve-sided Riviera launches.

All Baume & Mercier watches

Also in 5 collections

This watch appears in the Baume & Mercier Riviera range (19), Back in Stock (4,518), Stainless Steel Watches (2,987), Automatic Watches (1,642) and Grey Dial Watches (227).

Temporarily out of stock

Mappin & Webb is not currently taking orders for this reference. Last listed as available on 23 October 2026. Stock is checked nightly and this page updates when it returns.

Out of stock

What the specifications mean

A mechanical watch for everyday wear.

Strengths

  • 100m water resistance covers swimming and watersports
  • Sapphire crystal, which resists scratching
  • 120-hour reserve survives a weekend off the wrist
  • Luminous hands and markers for low light
  • One of Baume & Mercier's more premium watches
Best forSwimming

Price history

This watch is currently at its highest recorded price. It was £3,160 on 8 September. Prices are checked every day, and we record any changes.

£3,950£3,9508 September

Baume & Mercier Riviera alternatives

Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.

Riviera 42mm Mens Watch Black compared with 2 alternatives from other brands
SpecificationThis watchRiviera 42mm Mens Watch BlackBM0A10617LonginesConquest Chrono Ski Edition 42mm Mens WatchL38364529NorqainIndependence Skeleton 42mmN3000.07S01.B01.S01
Price£3,950£3,900£3,850
Case size42mm42mm42mm
Water resistance100m100m100m
MovementAutomaticAutomaticAutomatic
StrapRubber strapRubber strapStainless steel bracelet
Power reserve120 hours59 hours41 hours
This watchClosely matchedClosely matched

Your new watch

Frequently asked questions, and things you should know about this watch

Can I swim with it?

Yes. At 100m it is rated for swimming and snorkelling, though not for diving.

Water resistance explained

Will the glass scratch?

Unlikely. Sapphire is second only to diamond in hardness and shrugs off everyday marking.

Sapphire, mineral and acrylic compared

Does it need a battery?

No. It is automatic — the motion of your wrist winds it, and there is no cell to replace.

Quartz, automatic and solar compared

How long does it run for when it's not worn?

About 120 hours fully wound — enough to sit off the wrist over a weekend and still be running.

What size strap does it take?

20mm. Any strap of that width will fit, and on most modern watches quick-release bars make the swap a two-minute job with no tools.

Is it a men's or women's watch?

Listed as men's.

Has the price changed recently?

It's currently at its highest recorded price. It's ranged between £3,160 and £3,950, today it's £3,950.

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