Tissot
Tissot PRX 39 mm Silvered 18k
Photography on request
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.
Tissot · PRX
Tissot PRX 39 mm Silvered 18k
Reference 40668OR.81
Reference at a glance
- Brand
- Tissot
- Collection
- PRX
- Model
- Tissot PRX 39 mm Silvered 18k
- Reference number
- 40668OR.81
- Year / era
- 1969 · 1960s — pre-quartz mechanical era
- Complication
- Annual calendar
- Movement
- Automatic COSC chronometer
- Case material
- 18k white gold
- Dial type
- Silvered opaline
- Strap / bracelet
- Rubber strap with titanium clasp
- Water resistance
- 30 m
- Limited-edition status
- Limited edition of 50 pieces
Case, dial & bracelet
- Case dimensions
- 39 mm
- Case thickness
- 8.1 mm
- Case material
- 18k white gold
- Bezel
- Unidirectional ceramic 60-minute
- Crystal
- Flat sapphire with Cyclops lens
- Dial
- Silvered opaline
- Hands
- Mercedes hour hand with Chromalight display
- Indexes
- Printed minute track with applied batons
- Bracelet / strap
- Rubber strap with titanium clasp
- Clasp / buckle
- Triple-folding clasp with safety catch
- Water resistance
- 30 m
Movement
- Movement / calibre
- Calibre 53A — Automatic COSC chronometer
- Movement type
- High-frequency automatic
- Frequency
- 25,200 vph (3.5 Hz)
- Power reserve
- 10 days
- Number of jewels
- 45 jewels
- Complications
- Annual calendar
- Functions
- GMT second time zone, date
- Watchmaker
- Assembled and regulated by a single watchmaker, who signs off the piece before casing.
Production & market
- Production period
- 1969 – 1972
- Limited-edition quantity
- 50 pieces
- Current market information
- Thin secondary-market supply — pricing is set piece by piece at auction.
Designer
Tissot design studio
The reference was drawn by the manufacture's internal design office, where case, dial and movement architects work alongside the watchmakers rather than as an outside commission.
Historical significance
Tissot PRX 39 mm Silvered 18k sits within Tissot's PRX line, introduced in 1969. It carries the house codes established since 1853 — 18k white gold case, silvered opaline dial and automatic cosc chronometer — 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 reference was originally planned as a one-year run and stayed in the catalogue for well over a decade.
The House
Tissot
Brand facts
- Founding year
- 1853
- Founder
- Charles-Félicien Tissot
- Headquarters
- Switzerland
- Tier
- Affordable & Tool Watches
- Major collections
- PRX, Seastar, Le Locle, Gentleman, Chemin des Tourelles
- Signature technologies
- Certified chronometer regulation · Hand-applied guilloché dials
- Famous movements
- Automatic COSC chronometer · Automatic, 38-hour reserve · Quartz · Automatic Powermatic 80
- Notable watches
- Tissot PRX 36 mm Green Grade (1995) · Tissot PRX 39 mm Silvered 18k (1969) · Tissot PRX 38 mm Black Stainless (1994) · Tissot PRX 42 mm Salmon Ceramic (1980)
Brand history
Tissot has spent more than 173 years refining a single idea: a watch should outlive its owner. From the earliest workshop pieces to today's PRX, the house has balanced technical ambition with a recognisable design language, and its collections remain among the most closely followed by collectors worldwide.
Charles-Félicien Tissot established Tissot in 1853, working from Switzerland at a time when precision was measured by hand. The founder's obsession with finishing and accuracy still defines every Tissot calibre produced today.
Historical milestones
1853
Charles-Félicien Tissot founds Tissot in Switzerland.
1893
Tissot earns its first international recognition for precision timekeeping.
1969
The quartz era forces Tissot to redefine mechanical watchmaking.
1990
Tissot enters the modern collector market with its signature lines.
2024
Tissot continues to produce PRX, Seastar, Le Locle and other icons in limited numbers.