Reference
Omega Speedmaster Mark 4.5 ST 176.0012
Ref. ST 176.0012 was launched in 1975. This Speedmaster is nicknamed 'Mark 4.5' as it pairs the case of the Mark IV with the movement of the Mark V.
| Reference | ST 176.0012 |
|---|---|
| Collection | Speedmaster (Non-Moonwatch) |
| Case diameter | 41 mm |
| Case material | Stainless Steel |
| Case shape | Cushion |
| Case back | Closed |
| Movement | Omega caliber 1045Small |
| Water resistance | 60 m |
| Dial colour | Black |
| Indexes | Stick / Dot |
| Hands | Stick |
| Crystal | Mineral |
| Year introduced | 1975 |
| Limited edition | Yes |
This is a reference-catalog entry for the Omega Speedmaster Mark 4.5 ST 176.0012. 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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