Zenith Defy Extreme Diver 42.5mm (titanium)

The Zenith Defy Extreme Diver 42.5mm (titanium) is a current-production diver watch with a titanium (grade undisclosed) case, finished with brushed titanium; ceramic bezel; helium valve. It is priced well above the $1,199 median for the category. The caseback is open, so the movement is visible.

4 official photos · reader photos welcome

Price

$12,300

Material

Titanium

Grade / type

Titanium (grade undisclosed)

Water resistance

600 m

Reference

95.9600.3620.21.I300

Type

Diver

Case diameter

42.5 mm

Thickness

15.5 mm

Origin

Switzerland

Movement

Automatic

Caliber

Zenith El Primero 3620 SC

Power reserve

60 h

Complications

Date

Colour

Grey

Surface treatment

Brushed titanium; ceramic bezel; helium valve

Nickel-free

Not verified (contact-point materials not all confirmed)

Bracelet / strap

Titanium, rubber and fabric straps

Crystal

Sapphire

Display back

Yes

Dial

Black starry sunray

Dial colours

Black

Lume

Super-LumiNova

Availability

Offered

Status

Current

Not published

Lug-to-lug, Weight, Hardness, Construction, Caseback, Matching bracelet

Medium confidence Verified Jul 2026 Source: Zenith

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