The Titanium Field Guide

Jack Mason Strat-O-Timer Titanium Diver GMT

Strat-O-Timer Titanium GMT

The Jack Mason Strat-O-Timer Titanium Diver GMT is a current-production diver watch with a grade 2 titanium case, finished with hardness coating. At 118 g it sits around the middle for diver watches in the guide, and is priced close to the $1,299 median for the category. The maker states no nickel-bearing steel at any skin-contact point, across the case, caseback and bracelet.

All Jack Mason watchesWatch diver watchesUnder $3,000MicrobrandLightest, rankedOn a titanium braceletGMT
Price
$1,399
Material
Titanium
Grade / type
Grade 2
Weight
118 g
Water resistance
200 m
Reference
Strat-O-Timer Titanium GMT
Type
Diver
Case diameter
40.0 mm
Thickness
13.2 mm
Lug-to-lug
47 mm
Origin
United States
Movement
Automatic
Caliber
Miyota 9075
Power reserve
42 h
Complications
GMT, Date
Colour
Grey
Surface treatment
Hardness coating
Finish technology
Natural finish
Caseback
Titanium
Nickel-free
Maker states none
Bracelet / strap
Grade 2 titanium bracelet; FKM Tropic strap
Matching bracelet
Standard
Crystal
Sapphire
Display back
No
Dial
Anthracite, cobalt, black
Dial colours
Black Grey Blue
Lume
Super-LumiNova BGW9
Availability
Offered
Status
Current (between batches, restock estimated September)
Not published
Hardness, Construction
High confidence Verified Jul 2026 Source: Jack Mason (maker) / Fratello
Facts are free to cite with a link.
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Frequently asked questions

Is the Jack Mason Strat-O-Timer Titanium Diver GMT nickel-free?

On the maker's published specification, no nickel-bearing steel touches the skin: a grade 2 titanium case with a titanium caseback, plus a non-steel crown and strap. That is what the guide records rather than a test of the watch, so confirm the contact points with the maker before buying if you react to nickel.

What is the case material of the Jack Mason Strat-O-Timer Titanium Diver GMT?

The Jack Mason Strat-O-Timer Titanium Diver GMT has a grade 2 titanium case with a titanium caseback. This is confirmed against the maker spec.

What size is the Jack Mason Strat-O-Timer Titanium Diver GMT?

It is 40.0 mm in diameter, 13.2 mm thick, 47 mm lug to lug, and water resistant to 200 m.

How much does the Jack Mason Strat-O-Timer Titanium Diver GMT weigh?

About 118 g.

How much does the Jack Mason Strat-O-Timer Titanium Diver GMT cost, and is it available?

It is current-production and lists from $1,399.

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