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 is priced well above the $1,299 median for the category. The caseback is open, so the movement is visible.

All Zenith watchesWatch diver watchesCompact (38 mm and under)Display back
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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Frequently asked questions

What is the case material of the Zenith Defy Revival A3648 (microblasted titanium)?

The Zenith Defy Revival A3648 (microblasted titanium) has a titanium (grade undisclosed) case with a titanium caseback. It is recorded at medium confidence pending a maker-stated material.

What size is the Zenith Defy Revival A3648 (microblasted titanium)?

It is 37.0 mm in diameter, 15.5 mm thick, and water resistant to 600 m.

How much does the Zenith Defy Revival A3648 (microblasted titanium) cost, and is it available?

It is current-production and lists from $8,200.

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