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Omega Speedmaster Broad Arrow CK2915-2
Reference

Omega Speedmaster Broad Arrow CK2915-2

The CK2915 is the original Speedmaster as it was introduced to the market in 1957. Aimed at (aspiring) race car drivers, it was the first watch ever to be fitted with a tachymeter scale on its bezel - earlier watches, including those made by Omega, had the tachymeter scale printed on their dials.It would take a few…

ReferenceCK2915-2
CollectionSpeedmaster Moonwatch
Case diameter38.6 mm
Case materialStainless Steel
BezelTachymeter
Case shapeRound
Case backClosed
Lug width19.00 mm mm
MovementOmega caliber 321Small
Dial colourBlack
IndexesStick / Dot
HandsArrow
CrystalPlexi
Year introduced1958
Limited editionYes

This is a reference-catalog entry for the Omega Speedmaster Broad Arrow CK2915-2. WatchFlow's Watch Library lets a dealer attach a reference like this to a piece of stock in one click, so the brand, reference and specs are filled in automatically instead of retyped — then that record drives listings, invoices and reports. See how it fits the wider watch inventory management workflow.

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