The Titanium Field Guide

Certina DS Action Diver 40.5mm Titanium vs Omega Seamaster Diver 300M Titanium-Tantalum (LE)

The Certina DS Action Diver 40.5mm Titanium and the Omega Seamaster Diver 300M Titanium-Tantalum (LE) are both titanium diver watches. This is a side-by-side of their case size, weight, titanium grade, movement, water resistance, and price, drawn from the verified specs in the Titanium Field Guide.

CertinaDS Action Diver 40.5mm Titanium
OmegaSeamaster Diver 300M Titanium-Tantalum (LE)
Price$1,060
Case diameter40.5 mm42.0 mm
Thickness14.1 mm
Lug-to-lug
Water resistance300 m300 m
Weight
Titanium gradeTitanium (grade undisclosed)Grade 2
Surface treatmentBrushedBrushed
MovementAutomaticAutomatic (Master Chronometer, METAS)
Power reserve80 h55 h
ComplicationsDateDate
CrystalSapphire, AR coatedSapphire, AR coated
Bracelet / strapTitanium braceletTitanium bracelet (tantalum and Sedna gold links)
OriginSwitzerlandSwitzerland
ConfidenceHighHigh

Full details: Certina DS Action Diver 40.5mm Titanium · Omega Seamaster Diver 300M Titanium-Tantalum (LE)

All Certina titanium watches · All Omega titanium watches · How we verify & grade