Omega Seamaster Diver 300M

Ref. O21030422004001current

What is the Omega Seamaster Diver 300M?

Omega Seamaster Diver 300M 210.30.42.20.04.001 Automatic watch features a 42mm steel case with a black ceramic unidirectional bezel surrounding a white dial on a steel bracelet with a foldover clasp with comfort setting and diver extension. This watch is powered by Omega 8800. Functions include anti-magnetic, chronometer, date, helium escape valve, hours and minutes & seconds. This watch is water resistant to 300m. The 1916 Company is an authorized dealer for Omega and this watch includes the full manufacturer's warranty.

VerifiedUpdated 2026-03-25

Case Details

Diameter Mm
42 mmmedium
Thickness Mm
Unknownlow
Lug To Lug Mm
Unknownlow
Material
Stainless Steelmedium
Shape
Roundmedium
Bezel
Two-Tone: Ceramic/Stainlessmedium
Crystal
Sapphiremedium
Caseback
Exhibitionmedium
Water Resistance M
300 mmedium

Movement

Caliber
Unknownlow
Manufacturer
Omegalow
Winding
Automaticmedium
Frequency Vph
Unknownlow
Power Reserve Hours
Unknownlow
Complications
Anti-Magnetic, Date, Helium Release Valve, Hours And Minutes, Secondsmedium
Base Caliber Notes
Unknownlow

Dial

Color
Whitemedium
Marker Style
Dot, Indexmedium

Strap & Bracelet

Type
Braceletmedium
Material
Stainless Steelmedium
Clasp
Folding Bucklemedium