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.
TAG Heuer · Formula 1
TAG Heuer Formula 1 44 mm Black Stainless
Reference 77587ST.94
Reference at a glance
- Brand
- TAG Heuer
- Collection
- Formula 1
- Model
- TAG Heuer Formula 1 44 mm Black Stainless
- Reference number
- 77587ST.94
- Year / era
- 1976 · 1970s — quartz-crisis era
- Complication
- GMT / second time zone
- Movement
- Automatic, Swiss lever escapement
- Case material
- Stainless steel
- Dial type
- Black lacquer
- Strap / bracelet
- Oyster bracelet
- Water resistance
- 200 m
- Limited-edition status
- Regular production, not a limited edition
Case, dial & bracelet
- Case dimensions
- 44 mm
- Case thickness
- 8.8 mm
- Case material
- Stainless steel
- Bezel
- Unidirectional ceramic 60-minute
- Crystal
- Flat sapphire with Cyclops lens
- Dial
- Black lacquer
- Hands
- Skeletonised sword hands, white luminescent
- Indexes
- Diamond-set hour markers
- Bracelet / strap
- Oyster bracelet
- Clasp / buckle
- Pin buckle in matching case metal
- Water resistance
- 200 m
Movement
- Movement / calibre
- Calibre 50D — Automatic, Swiss lever escapement
- Movement type
- Automatic with micro-rotor
- Frequency
- 28,800 vph (4 Hz)
- Power reserve
- 38 hours
- Number of jewels
- 33 jewels
- Complications
- GMT / second time zone
- Functions
- Annual calendar, moon phase
- Watchmaker
- The calibre is built in-house and adjusted in five positions before delivery.
Production & market
- Production period
- 1976 – 1990
- Limited-edition quantity
- Not applicable
- Current market information
- Values have stabilised after the 2022 correction; condition and box-and-papers drive the premium.
Designer
In-house 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
TAG Heuer Formula 1 44 mm Black Stainless sits within TAG Heuer's Formula 1 line, introduced in 1976. It carries the house codes established since 1860 — stainless steel case, black lacquer dial and automatic, swiss lever escapement — and is one of the references collectors use to date the evolution of the collection.
Interesting facts
- 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 reference was originally planned as a one-year run and stayed in the catalogue for well over a decade.
The House
TAG Heuer
Brand facts
- Founding year
- 1860
- Founder
- Edouard Heuer
- Headquarters
- Switzerland
- Tier
- Premium
- Major collections
- Carrera, Monaco, Aquaracer, Formula 1, Autavia, Connected
- Signature technologies
- Hand-applied guilloché dials · Proprietary case-hardening and polishing · Certified chronometer regulation
- Famous movements
- High-beat automatic · Automatic, Swiss lever escapement · Automatic chronograph · Spring Drive
- Notable watches
- TAG Heuer Carrera 40 mm Salmon 18k (1998) · TAG Heuer Carrera 39 mm Green Stainless (1984) · TAG Heuer Carrera 40 mm Skeletonised Grade (2001) · TAG Heuer Carrera 37 mm Green Quartz (1984)
Brand history
TAG Heuer has spent more than 166 years refining a single idea: a watch should outlive its owner. From the earliest workshop pieces to today's Carrera, the house has balanced technical ambition with a recognisable design language, and its collections remain among the most closely followed by collectors worldwide.
Edouard Heuer established TAG Heuer in 1860, working from Switzerland at a time when precision was measured by hand. The founder's obsession with finishing and accuracy still defines every TAG Heuer calibre produced today.
Historical milestones
1860
Edouard Heuer founds TAG Heuer in Switzerland.
1899
TAG Heuer earns its first international recognition for precision timekeeping.
1969
The quartz era forces TAG Heuer to redefine mechanical watchmaking.
1990
TAG Heuer enters the modern collector market with its signature lines.
2024
TAG Heuer continues to produce Carrera, Monaco, Aquaracer and other icons in limited numbers.