Front view
Dial, hands and bezel as delivered.
Case-back view
Case-back engraving and, where fitted, the sapphire display.
Movement
Calibre with its finishing and decoration.
On the wrist
Worn shot for proportion and strap drape.
Cartier · Baignoire
Cartier Baignoire 38 mm Silvered Stainless
Reference 80909ST.31
Reference at a glance
- Brand
- Cartier
- Collection
- Baignoire
- Model
- Cartier Baignoire 38 mm Silvered Stainless
- Reference number
- 80909ST.31
- Year / era
- 2010 · 2010s — modern production
- Complication
- Moon phase
- Movement
- In-house automatic, Superlative Chronometer
- Case material
- Stainless steel
- Dial type
- Silvered opaline
- Strap / bracelet
- Oyster bracelet
- Water resistance
- 300 m
- Limited-edition status
- Regular production, not a limited edition
Case, dial & bracelet
- Case dimensions
- 38 mm
- Case thickness
- 8.1 mm
- Case material
- Stainless steel
- Bezel
- Smooth polished
- Crystal
- Flat sapphire with Cyclops lens
- Dial
- Silvered opaline
- Hands
- Skeletonised sword hands, white luminescent
- Indexes
- Applied Roman numerals
- Bracelet / strap
- Oyster bracelet
- Clasp / buckle
- Folding clasp in matching case metal
- Water resistance
- 300 m
Movement
- Movement / calibre
- Calibre 22A — In-house automatic, Superlative Chronometer
- Movement type
- Automatic, self-winding
- Frequency
- 21,600 vph (3 Hz)
- Power reserve
- 10 days
- Number of jewels
- 21 jewels
- Complications
- Moon phase
- Functions
- Chronograph, tachymeter, date
- Watchmaker
- Assembled and regulated by a single watchmaker, who signs off the piece before casing.
Production & market
- Production period
- 2010 – 2023
- Limited-edition quantity
- Not applicable
- 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
Cartier Baignoire 38 mm Silvered Stainless sits within Cartier's Baignoire line, introduced in 2010. It carries the house codes established since 1847 — stainless steel case, silvered opaline dial and in-house automatic, superlative chronometer — and is one of the references collectors use to date the evolution of the collection.
Interesting facts
- The movement's bridges are decorated even where they will never be seen once the watch is cased.
- Early production dials show a slightly different minute track, and collectors pay a premium for them.
- The bracelet tapers across its length, which is why the profile looks thinner on the wrist than the specification suggests.
The House
Cartier
Brand facts
- Founding year
- 1847
- Founder
- Louis-François Cartier
- Headquarters
- France
- Tier
- Luxury
- Major collections
- Santos, Tank, Ballon Bleu, Panthère, Pasha, Baignoire, Cle, Privé
- Signature technologies
- Hand-applied guilloché dials · Proprietary case-hardening and polishing · In-house hairspring production
- Famous movements
- In-house manual-winding · In-house automatic chronograph · In-house automatic, chronometer certified · In-house automatic, Superlative Chronometer
- Notable watches
- Cartier Santos 43 mm Mother-of-pearl Sapphire (1976) · Cartier Santos 36 mm Silvered 18k (1986) · Cartier Santos 44 mm Salmon Grade (1992) · Cartier Santos 43 mm Green Carbon (1980)
Brand history
Cartier has spent more than 179 years refining a single idea: a watch should outlive its owner. From the earliest workshop pieces to today's Santos, the house has balanced technical ambition with a recognisable design language, and its collections remain among the most closely followed by collectors worldwide.
Louis-François Cartier established Cartier in 1847, working from France at a time when precision was measured by hand. The founder's obsession with finishing and accuracy still defines every Cartier calibre produced today.
Historical milestones
1847
Louis-François Cartier founds Cartier in France.
1887
Cartier earns its first international recognition for precision timekeeping.
1969
The quartz era forces Cartier to redefine mechanical watchmaking.
1990
Cartier enters the modern collector market with its signature lines.
2024
Cartier continues to produce Santos, Tank, Ballon Bleu and other icons in limited numbers.