Some specifications for this reference are on file; the record is incomplete.
Omega · Speedmaster
Speedmaster Professional Moonwatch
Ref. CK2915 — “Broad Arrow”
discontinuedFirst SpeedmasterPartially documentedLast reviewed Not yet reviewed
Overview
- Nickname
- Broad Arrow
- Production
- 1957–1959
- Era
- First Speedmaster
- Status
- discontinued
Case
- Case diameter
- 39mm
- Case material
- Stainless steel
- Bezel
- Tachymeter
- Bezel material
- Steel (later aluminium)
- Crystal
- Acrylic (Hesalite)
- Caseback type
- Screw-down solid
- Water resistance
- 60m
Dial & Hands
- Dial
- Black
- Hands
- Broad arrow
- Lume
- Radium then tritium
- Lume type
- Radium
Movement
- Movement
- Manual chronograph
- Caliber
- 321
- Manufacturer
- Omega (Lemania base)
- Winding
- manual
- Frequency
- 18,000 vph
- Complications
- Chronograph, tachymeter
- Functions
- Chronograph, tachymeter