Zenith Defy Extreme Diver 42.5mm (titanium)

The Zenith Defy Extreme Diver 42.5mm (titanium) is a current-production diver watch with a grey titanium (grade undisclosed) case, finished with brushed titanium; ceramic bezel; helium valve. It measures 42.5 mm across, 15.5 mm thick, and is water resistant to 600 m. Inside is the Zenith El Primero 3620 SC automatic movement, with 60 h power reserve. Complications: Date. Priced from $12,300 (MSRP $12,300). Brand origin: Switzerland.

3 official photos · reader photos welcome

Reference

95.9600.3620.21.I300

Type

Diver

Price

$12,300 · MSRP $12,300

Case diameter

42.5 mm

Thickness

15.5 mm

Lug-to-lug

–

Water resistance

600 m

Weight

–

Origin

Switzerland

Movement

Automatic

Caliber

Zenith El Primero 3620 SC

Power reserve

60 h

Complications

Date

Material

Titanium

Grade / type

Titanium (grade undisclosed)

Colour

Grey

Hardness

–

Construction

–

Surface treatment

Brushed titanium; ceramic bezel; helium valve

Caseback

–

Nickel-free

Not verified (contact-point materials not all confirmed)

Bracelet / strap

Titanium, rubber and fabric straps

Matching bracelet

–

Crystal

Sapphire

Display back

Yes

Dial

Black starry sunray

Lume

Super-LumiNova

Availability

Offered

Status

Current

Medium confidence Verified Jul 2026 Source: Zenith Maker / listing ↗

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