The Titanium Field Guide

Audemars Piguet Royal Oak Offshore Selfwinding Chronograph 43mm 26420IO vs Zenith Defy 21 Ultraviolet (microblasted titanium)

The Audemars Piguet Royal Oak Offshore Selfwinding Chronograph 43mm 26420IO and the Zenith Defy 21 Ultraviolet (microblasted titanium) are both titanium integrated bracelet 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.

Audemars PiguetRoyal Oak Offshore Selfwinding Chronograph 43mm 26420IO
ZenithDefy 21 Ultraviolet (microblasted titanium)
Price$13,100
Case diameter43.0 mm44.0 mm
Thickness14.4 mm14.5 mm
Lug-to-lug
Water resistance100 m100 m
Weight
Titanium gradeTitanium (grade undisclosed)Titanium (grade undisclosed)
Surface treatmentSatin-brushed and polished; grey ceramic bezelMicroblasted titanium
MovementAutomatic (flyback chronograph)Automatic (1/100th chronograph)
Power reserve70 h50 h
ComplicationsChronograph, DateChronograph, Power reserve
CrystalSapphire, AR coatedSapphire
Bracelet / strapGrey rubber (interchangeable)Rubber strap
OriginSwitzerlandSwitzerland
ConfidenceMediumMedium

Full details: Audemars Piguet Royal Oak Offshore Selfwinding Chronograph 43mm 26420IO · Zenith Defy 21 Ultraviolet (microblasted titanium)

All Audemars Piguet titanium watches · All Zenith titanium watches · How we verify & grade