OmegaSpeedmaster Professional
ST 145.012Photo: Shane Lin, CC BY-SA 2.0No price yet
Omega, Chronograph
Speedmaster "Broad Arrow"
Ref. CK 2915, 1957, Discontinued
The first Speedmaster and, according to Omega, the first wrist chronograph with the tachymeter scale on the bezel rather than the dial.
Price not verified yet
We only publish a price with a source and a date.
- Diameter
- 38.6 mm
- Water resistance
- 50 m
- Movement
- Hand-wound
- Material
- stainless steel
Specifications
Case
- Diameter
- 38.6 mm
- Thickness
- Not confirmed
- Material
- stainless steel
- Shape
- round
- Water resistance
- 50 m
Movement
- Movement
- Hand-wound
- Calibre
- 321
- Power reserve
- Not confirmed
- Frequency
- Not confirmed
- Jewels
- Not confirmed
- Complications
- hours, minutes, small seconds, chronograph, tachymeter
Dial and strap
- Dial
- matte black
- Markers
- Not confirmed
- Date
- Not confirmed
- Bezel
- tachymeter, steel
- Strap
- bracelet, steel
Record
- Line
- Speedmaster
- Year
- 1957
- Status
- Discontinued
- Range
- Luxury
Across the Archive
Alternatives
Why it matters
- Broad Arrow hands
- Part of the 1957 professional trilogy
- Produced 1957-1959 in references CK 2915-1, -2 and -3, according to Monochrome
Sources
Record confidence: high. Anything unverified stays marked, never estimated.