Alpina
Alpina Seastrong 37 mm Slate Carbon
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.
Alpina · Seastrong
Alpina Seastrong 37 mm Slate Carbon
Reference 55002OR.32
Reference at a glance
- Brand
- Alpina
- Collection
- Seastrong
- Model
- Alpina Seastrong 37 mm Slate Carbon
- Reference number
- 55002OR.32
- Year / era
- 1979 · 1970s — quartz-crisis era
- Complication
- Annual calendar
- Movement
- Automatic COSC chronometer
- Case material
- Carbon TPT
- Dial type
- Slate grey
- Strap / bracelet
- Rubber strap with titanium clasp
- Water resistance
- 300 m
- Limited-edition status
- Limited edition of 100 pieces
Case, dial & bracelet
- Case dimensions
- 37 mm
- Case thickness
- 8.1 mm
- Case material
- Carbon TPT
- Bezel
- Bidirectional 24-hour Cerachrom
- Crystal
- Flat sapphire with Cyclops lens
- Dial
- Slate grey
- Hands
- Mercedes hour hand with Chromalight display
- Indexes
- Printed minute track with applied batons
- Bracelet / strap
- Rubber strap with titanium clasp
- Clasp / buckle
- Folding clasp in matching case metal
- Water resistance
- 300 m
Movement
- Movement / calibre
- Calibre 52E — Automatic COSC chronometer
- Movement type
- Automatic, self-winding
- Frequency
- 21,600 vph (3 Hz)
- Power reserve
- 55 hours
- Number of jewels
- 40 jewels
- Complications
- Annual calendar
- Functions
- Chronograph, tachymeter, date
- Watchmaker
- Finishing, assembly and timing are carried out in the manufacture's own atelier.
Production & market
- Production period
- 1979 – 1982
- Limited-edition quantity
- 100 pieces
- Current market information
- Thin secondary-market supply — pricing is set piece by piece at auction.
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
Alpina Seastrong 37 mm Slate Carbon sits within Alpina's Seastrong line, introduced in 1979. It carries the house codes established since 1883 — carbon tpt case, slate grey dial and automatic cosc chronometer — and is one of the references collectors use to date the evolution of the collection.
Interesting facts
- 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
Alpina
Brand facts
- Founding year
- 1883
- Founder
- Gottlieb Hauser
- Headquarters
- Switzerland
- Tier
- Affordable & Tool Watches
- Major collections
- Alpiner, Seastrong, Startimer, Comtesse
- Signature technologies
- Shock-absorbing movement mounting · Anti-magnetic silicon escapement · In-house hairspring production
- Famous movements
- Quartz · Automatic COSC chronometer · Automatic Powermatic 80 · Automatic, 38-hour reserve
- Notable watches
- Alpina Alpiner 44 mm Silvered Platinum (1955) · Alpina Alpiner 42 mm Black 18k (1966) · Alpina Alpiner 44 mm Ice Carbon (1992) · Alpina Alpiner 44 mm Salmon 18k (1961)
Brand history
Alpina has spent more than 143 years refining a single idea: a watch should outlive its owner. From the earliest workshop pieces to today's Alpiner, the house has balanced technical ambition with a recognisable design language, and its collections remain among the most closely followed by collectors worldwide.
Gottlieb Hauser established Alpina in 1883, working from Switzerland at a time when precision was measured by hand. The founder's obsession with finishing and accuracy still defines every Alpina calibre produced today.
Historical milestones
1883
Gottlieb Hauser founds Alpina in Switzerland.
1899
Alpina earns its first international recognition for precision timekeeping.
1969
The quartz era forces Alpina to redefine mechanical watchmaking.
1990
Alpina enters the modern collector market with its signature lines.
2024
Alpina continues to produce Alpiner, Seastrong, Startimer and other icons in limited numbers.