All Baume & Mercier
Baume & Mercier Riviera 36 mm Slate 18k
Front view

Front view

Dial, hands and bezel as delivered.

Case-back view

Case-back view

Case-back engraving and, where fitted, the sapphire display.

Movement

Movement

Calibre with its finishing and decoration.

On the wrist

On the wrist

Worn shot for proportion and strap drape.

Baume & Mercier · Riviera

Baume & Mercier Riviera 36 mm Slate 18k

Reference 66954OR.14

Reference at a glance

Brand
Baume & Mercier
Collection
Riviera
Model
Baume & Mercier Riviera 36 mm Slate 18k
Reference number
66954OR.14
Year / era
2015 · 2010s — modern production
Complication
Chronograph
Movement
Automatic, Swiss lever escapement
Case material
18k yellow gold
Dial type
Slate grey
Strap / bracelet
NATO textile strap
Water resistance
30 m
Limited-edition status
Limited edition of 500 pieces
Compare this reference

Case, dial & bracelet

Case dimensions
36 mm
Case thickness
8.8 mm
Case material
18k yellow gold
Bezel
Fluted 18k gold
Crystal
Anti-reflective sapphire, double-domed
Dial
Slate grey
Hands
Faceted dauphine hands, polished by hand
Indexes
Printed minute track with applied batons
Bracelet / strap
NATO textile strap
Clasp / buckle
Titanium deployant clasp
Water resistance
30 m

Movement

Movement / calibre
Calibre 86C — Automatic, Swiss lever escapement
Movement type
High-frequency automatic
Frequency
28,800 vph (4 Hz)
Power reserve
55 hours
Number of jewels
21 jewels
Complications
Chronograph
Functions
Hours, minutes, seconds, date
Watchmaker
Finishing, assembly and timing are carried out in the manufacture's own atelier.

Production & market

Production period
2015 – 2018
Limited-edition quantity
500 pieces
Current market information
Trades close to retail on the secondary market, with steady demand for full-set examples.

Designer

Marc Newson

Marc Newson is an Australian industrial designer whose work spans Qantas cabins, Apple hardware and Jaeger-LeCoultre's Atmos clocks; his watch design reduces the object to pure geometry and legibility.

Historical significance

Baume & Mercier Riviera 36 mm Slate 18k sits within Baume & Mercier's Riviera line, introduced in 2015. It carries the house codes established since 1830 — 18k yellow gold case, slate grey dial and automatic, swiss lever escapement — and is one of the references collectors use to date the evolution of the collection.

Interesting facts

  • The case is finished by hand, alternating polished and satin-brushed surfaces in a single pass so the edges stay razor sharp.
  • The bracelet tapers across its length, which is why the profile looks thinner on the wrist than the specification suggests.
BA

The House

Baume & Mercier

Brand facts

Founding year
1830
Founder
Louis-Victor & Célestin Baume
Headquarters
Switzerland
Tier
Premium
Major collections
Clifton, Riviera, Hampton, Classima, Linea
Signature technologies
Certified chronometer regulation · Composite and ceramic case materials
Famous movements
Automatic, Swiss lever escapement · High-beat automatic · Spring Drive · Automatic chronograph
Notable watches
Baume & Mercier Clifton 43 mm Salmon Stainless (1960) · Baume & Mercier Clifton 39 mm Slate Platinum (1958) · Baume & Mercier Clifton 36 mm Meteorite Platinum (1970) · Baume & Mercier Clifton 37 mm Green Ceramic (1956)

Brand history

Baume & Mercier has spent more than 196 years refining a single idea: a watch should outlive its owner. From the earliest workshop pieces to today's Clifton, the house has balanced technical ambition with a recognisable design language, and its collections remain among the most closely followed by collectors worldwide.

Louis-Victor & Célestin Baume established Baume & Mercier in 1830, working from Switzerland at a time when precision was measured by hand. The founder's obsession with finishing and accuracy still defines every Baume & Mercier calibre produced today.

Historical milestones

  1. 1830

    Louis-Victor & Célestin Baume founds Baume & Mercier in Switzerland.

  2. 1870

    Baume & Mercier earns its first international recognition for precision timekeeping.

  3. 1969

    The quartz era forces Baume & Mercier to redefine mechanical watchmaking.

  4. 1990

    Baume & Mercier enters the modern collector market with its signature lines.

  5. 2024

    Baume & Mercier continues to produce Clifton, Riviera, Hampton and other icons in limited numbers.

More Riviera