Ref. 3603, Leather Strap
Beta 21 Grande Ellipse 3603 — Ref. 3603, Leather Strap
Undated
Strap version.
Fewer than 120 made (Collectability).
No verified image of this watch yet
Identifying details
- Date
Date display.
Variants of 3603
Reference overview →| Variant | Production |
|---|---|
| Ref. 3603, Leather StrapCurrent | Undated |
| Ref. 3603/1, Integrated Oyster-Style Bracelet | Undated |
| Ref. 3603/2, Tubogas Bracelet | Undated |
Case & movement
- Reference
- 3603
- Production
- Undated
- Case size
- 33 × 37.5 mm
- Movement
- Quartz
- Date
- Yes
- Caliber
- CEH Beta 21
Dial, bezel & hands
Unknown attributes are left out rather than guessed.
Movement
CEH Beta 21
The first Swiss quartz wristwatch movement, developed by the Centre Electronique Horloger in Neuchâtel (founded 1962 by about 20 brands including Patek Philippe, Rolex and Omega); accurate to about five seconds a month. Only about 6,000 were made and shared among the members.
Quartz · Introduced 1969 · 13 jewels