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Omega Speedmaster Calibre 321 Chronograph 42mm
Ref. 311.93.42.30.99.001 · Chronograph
Case
- Diameter
- 42mm
- Thickness
- 13.39mm
- Lug-to-lug
- 47.6mm
- Lug width
- 20mm
- Material
- 950 Platinum
- Finish
- Platinum
- Water resistance
- 50m
Crystal & dial
- Crystal
- Sapphire
- Shape
- Domed
- Dial colour
- Black
Movement
- Caliber
- Omega 321
- Type
- Manual
- Power reserve
- 55h
- Hacking
- Yes
- Hand-winding
- Yes
- Complications
- Chronograph
Design language
- Case shape
- round
- Dial style
- matte
- Sub-dials
- 3
- Bezel
- tachymeter
- Bracelet
- leather
- Hands
- baton
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Speedmaster Calibre collection · 3 watches
2 colorways
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Owners widely praise the Omega Speedmaster Calibre 321 Chronograph 42mm for its historical significance, superior finishing on the bracelet and movement, and comfortable wearability, with some calling it the ultimate Speedmaster and appreciating its faithful re-creation of vintage models. The bracelet is frequently highlighted as one of Omega's best, being comfortable, well-finished, and easily adjustable. However, the Omega Speedmaster Calibre 321 Chronograph 42mm is noted for its high price point, with some owners questioning if the historical horology justifies the cost compared to other Omega models. Accuracy figures vary, with one owner reporting +20 seconds per day while others find it less accurate than the 3861 movement. On balance, owners and reviewers rate the Omega Speedmaster Calibre 321 Chronograph 42mm highly for its exquisite finishing and historical appeal, despite its significant cost.
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