The Titanium Field Guide

Ralf Tech WRX Automatic Millenium Lefty x Peter Gunny

WRX 4002

The Ralf Tech WRX Automatic Millenium Lefty x Peter Gunny is a 47.5 mm Grade 1 titanium dive watch with an RTA002 automatic movement. At 47.5 mm across, it is larger than 93% of the 356 titanium dive watches in the guide.

All Ralf Tech watchesDiver watchesMicrobrand
Price
≈$5,410 (€4,800)
Material
Titanium
Grade / type
Grade 1 titanium (T35)
Water resistance
1000 m
Reference
WRX 4002
Type
Diver
Case diameter
47.5 mm
Origin
France
Movement
Mechanical automatic
Caliber
RTA002
Power reserve
Up to 44 h
Complications
Time only
Colour
Grey
Surface treatment
Sandblasted
Finish technology
Natural finish
Nickel-free
Unconfirmed (contact-point materials not all confirmed)
Bracelet / strap
Beige buffalo leather strap with carbon coating, hand-sewn by Peter Gunny, plus a black silicone strap; 26 mm lugs, pin buckle
Crystal
Sapphire, curved, anti-reflective, 5.9 mm thick
Display back
No
Dial
Matte black
Dial colours
Black
Lume
Super-LumiNova C5
Availability
Offered
Status
Limited edition of 22
Not published
Thickness, Lug-to-lug, Weight, Hardness, Construction, Caseback, Matching bracelet
High confidence Verified Oct 2026 Source: Ralf Tech (maker product page) / Ralf Tech (maker product page, English)
Facts are free to cite with a link.
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Frequently asked questions

What grade of titanium is the Ralf Tech WRX Automatic Millenium Lefty x Peter Gunny?

Grade 1, as stated by the maker.

What size is the Ralf Tech WRX Automatic Millenium Lefty x Peter Gunny?

The case is 47.5 mm across. It is water resistant to 1,000 m.

How much does the Ralf Tech WRX Automatic Millenium Lefty x Peter Gunny cost, and is it available?

It is in production, at a list price of $5,410.

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