Ref. 311.30.40.30.01.001
The Omega Speedmaster Calibre 321, reference 311.30.40.30.01.001, is a chronograph with a 39.7 mm steel case. The case is 13.7 mm thick and measures 48 mm lug to lug. The movement is the manual-winding Omega calibre 321, which has a power reserve of 55 hours. The crystal is scratch-resistant sapphire with anti-reflective treatment on the inside. The dial is black and has small seconds and a tachymeter. The watch has a display back. Omega rates the case to 50 metres, equal to 5 bar or 165 feet. A steel bracelet with a foldover clasp is fitted to the watch.
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TECHNICAL SPECIFICATIONS
GENERAL
Gender
Men
CASE
Diameter
39.7mm
Thickness
13.7mm
Lug to Lug
48mm
Lug Width
19mm
Case Material
Steel
Water Resistance
50m
Crystal
Sapphire Crystal
Bezel Material
Ceramic
MOVEMENT
Movement Type
Manual Winding
Caliber
321
DIAL
Dial Color
Black
Numerals
Lines
BRACELET/STRAP
Bracelet/Strap
Steel
Clasp Type
Fold Clasp
Clasp Material
Steel
FEATURES & COMPLICATIONS
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FOR WATCH DEALERS
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