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Baume & Mercier Joia 28mm Ladies Watch Silver
Ref. BMM0A10847
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Stepping up in the same dial colour
Introduced at Watches and Wonders 2026, the Joia de Baume & Mercier is designed around the proposition that a dress watch should read as a jewel first. The crown set with black agate, the 4N gold-plated leaf hands moving across a sunburst silver dial, the complete absence of external lugs — every element points in the same direction: a case that sits on the wrist as a single unbroken shape, 7.2mm thin, with nothing to snag or interrupt the line. The midnight blue calfskin strap fits that intent well, providing contrast against the silver without introducing a sporting note, and it releases without tools should the owner want to change it. The Ronda 751 inside is Swiss-made and carries a five-year battery life, which means the watch will go years between the only service it will require.
- Reference
- BMM0A10847
- Brand
- Baume & Mercier
- Collection
- Joia de Baume & Mercier
- Case size
- 28mm
- Case thickness
- 7.2mm
- Case material
- Stainless steel
- Case shape
- Round
- Dial
- Silver
- Crystal
- Sapphire
- Movement
- Quartz
- Calibre
- Ronda 751
- Water resistance
- 50m
- Bracelet / strap
- Leather strap
- Strap colour
- Blue
- Clasp
- Buckle
- Lume
- Luminous
- Retailer
- Mappin & Webb
Additional specifications
- Origin
- Swiss made
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.
Also in 6 collections
This watch appears in Back in Stock (5,399), Stainless Steel Watches (3,501), Watches Under 37mm (1,867), Women's Watches (1,792), Leather Strap Watches (1,148) and Silver Dial Watches (786).
What the specifications mean
A slim watch on leather, made for wearing with a shirt.
Strengths
- 28mm wears small and slips under any cuff
- Sapphire crystal, which resists scratching
- Luminous hands and markers for low light
- Sits in the lower half of Baume & Mercier's range as we list it
Worth knowing
- 50m suits rain and handwashing, not swimming
Baume & Mercier Joia alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | BMM0A10847 | 5925-P-00300 | YA142512 |
|---|---|---|---|
| Price | £1,190 | £1,295 | £1,160 |
| Case size | 28mm | 28.1mm | 29mm |
| Water resistance | 50m | 50m | 50m |
| Movement | Quartz | Quartz | Quartz |
| Strap | Leather strap | Stainless steel bracelet | Rubber strap |
| This watch | Closely matched | Closely matched |
Your new watch
Frequently asked questions, and things you should know about this watch
Can I swim with it?
Showering yes, swimming no. 50m covers splashes and brief immersion, but a swimming stroke generates well above the pressure that figure describes.
Water resistance explainedWill the glass scratch?
Unlikely. Sapphire is second only to diamond in hardness and shrugs off everyday marking.
Sapphire, mineral and acrylic comparedDoes it need a battery?
Yes. It is quartz, so expect a battery change every two to three years at a jeweller.
Quartz, automatic and solar comparedIs it a men's or women's watch?
Listed as women's.
Cheapest place to buy
Mappin & Webb is the only UK retailer we track stocking this reference, so there is nothing to compare it against today.
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