The Titanium Field Guide

Zenith Defy Revival A3648 (microblasted titanium)

97.A3648.670.21.M3648

The Zenith Defy Revival A3648 (microblasted titanium) is a current-production diver watch with a Titanium (grade undisclosed) case, finished with microblasted titanium; unidirectional rotating bezel. It measures 37.0 mm across, 15.5 mm thick, and is water resistant to 600 m. Inside is the Zenith Elite 670 automatic movement, with 50 h power reserve. Complications: Date. Priced from $8,200 (approx; maker page pending). Brand origin: Switzerland.

Titanium diver watches
Reference97.A3648.670.21.M3648
TypeDiver
Price$8,200 · approx; maker page pending
Case diameter37.0 mm
Thickness15.5 mm
Lug-to-lug–
Water resistance600 m
Weight–
OriginSwitzerland
MovementAutomatic
CaliberZenith Elite 670
Power reserve50 h
ComplicationsDate
TitaniumTitanium (grade undisclosed)
Surface treatmentMicroblasted titanium; unidirectional rotating bezel
Nickel-freeYes
Bracelet / strapTitanium
CrystalSapphire
Display back–
DialBlack and yellow
LumeSuper-LumiNova
AvailabilityOffered
StatusCurrent; maker page pending verification
Medium confidence Verified 2026-06-22 Source: Zenith Maker / listing ↗
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