Zenith Defy Revival A3648 (microblasted titanium)

The Zenith Defy Revival A3648 (microblasted titanium) is a 37 mm titanium dive watch with a Zenith Elite 670 automatic movement. At 37 mm across, no other titanium dive watch in the guide is smaller, out of 359.

3 official photos · reader photos welcome

Price

$8,200

Material

Titanium

Grade / type

Titanium (grade undisclosed)

Water resistance

600 m

Reference

97.A3648.670.21.M3648

Type

Diver

Case diameter

37.0 mm

Thickness

15.5 mm

Origin

Switzerland

Movement

Automatic

Caliber

Zenith Elite 670

Power reserve

50 h

Complications

Date

Colour

Grey

Surface treatment

Microblasted titanium; unidirectional rotating bezel

Finish technology

Natural finish

Caseback

Titanium

Nickel-free

Unconfirmed (clasp or buckle material not confirmed)

Bracelet / strap

Titanium

Crystal

Sapphire

Display back

Yes

Dial

Black and yellow

Dial colours

Black Yellow

Lume

Super-LumiNova

Availability

Offered

Status

Current

Not published

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

Medium confidence Verified Jun 2026 Source: Zenith

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