Tissot
Tissot PRX 37 mm Slate Sapphire
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 37 mm Slate Sapphire
Reference 86142OR.88
Reference at a glance
- Brand
- Tissot
- Collection
- PRX
- Model
- Tissot PRX 37 mm Slate Sapphire
- Reference number
- 86142OR.88
- Year / era
- 2001 · 2000s — modern production
- Complication
- Minute repeater
- Movement
- Automatic Powermatic 80
- Case material
- Sapphire crystal case
- Dial type
- Slate grey
- Strap / bracelet
- Rubber strap with titanium clasp
- Water resistance
- 100 m
- Limited-edition status
- Regular production, not a limited edition
Case, dial & bracelet
- Case dimensions
- 37 mm
- Case thickness
- 10.2 mm
- Case material
- Sapphire crystal case
- Bezel
- Baguette diamond rainbow
- Crystal
- Box sapphire with AR coating
- Dial
- Slate grey
- Hands
- Faceted dauphine hands, polished by hand
- Indexes
- Printed minute track with applied batons
- Bracelet / strap
- Rubber strap with titanium clasp
- Clasp / buckle
- Folding clasp in matching case metal
- Water resistance
- 100 m
Movement
- Movement / calibre
- Calibre 24D — Automatic Powermatic 80
- Movement type
- Automatic with micro-rotor
- Frequency
- 25,200 vph (3.5 Hz)
- Power reserve
- 65 hours
- Number of jewels
- 31 jewels
- Complications
- Minute repeater
- 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
- 2001 – 2009
- Limited-edition quantity
- Not applicable
- Current market information
- Consistently trades above retail; waiting lists at authorised dealers remain long.
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 37 mm Slate Sapphire sits within Tissot's PRX line, introduced in 2001. It carries the house codes established since 1853 — sapphire crystal case case, slate grey dial and automatic powermatic 80 — 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.
- The bracelet tapers across its length, which is why the profile looks thinner on the wrist than the specification suggests.
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.