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Aragon Divemaster Titanium GMT

A631 (50mm) / A632 (45mm)

Aragon is an American brand, and the Divemaster Titanium GMT comes in two sizes, 45 mm and an even larger 50 mm. The case and bracelet are titanium, the bezel insert is sapphire with lumed markings, and Seiko's NH34 drives a separate 24-hour hand for a second time zone. It is rated to 200 m. At 45 mm and 13.6 mm thick, and 184 g on its bracelet, it is heavy for a titanium watch and makes no attempt to be discreet. Each size is a numbered limited edition of 100, in pink, blue or teal, and Aragon also offers a leather strap. The 45 mm lists at $300.

Written 28 September 2026 from Aragon's 45 mm product page and Aragon's 50 mm product page.

All Aragon watchesDiver watchesUnder $500MicrobrandLightest, rankedDisplay backGMT
Price
$300
Material
Titanium
Grade / type
Titanium
Weight
184 g
Water resistance
200 m
Reference
A631 (50mm) / A632 (45mm)
Type
Diver
Case diameter
45.0 mm
Thickness
13.6 mm
Origin
United States
Movement
Automatic GMT
Caliber
Seiko (SII) NH34 GMT
Complications
GMT, Date
Colour
Grey
Finish technology
Natural finish
Nickel-free
Unconfirmed (contact-point materials not all confirmed)
Bracelet / strap
Titanium (leather strap option)
Crystal
Sapphire
Display back
Yes
Dial
Pink, blue, and teal colourways
Dial colours
Blue Salmon
Lume
Super-LumiNova
Availability
Offered
Status
Current (limited edition of 100)
Not published
Lug-to-lug, Power reserve, Hardness, Construction, Surface treatment, Caseback, Matching bracelet
Medium confidence Verified Jul 2026 Source: Aragon (maker, 45mm A632) / Aragon (maker, 50mm A631)
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Frequently asked questions

What grade of titanium is the Aragon Divemaster Titanium GMT?

Titanium, with no grade stated. The record is at medium confidence, so check the maker's page before relying on it.

What size is the Aragon Divemaster Titanium GMT?

The case is 45 mm across and 13.6 mm thick. It is water resistant to 200 m.

How much does the Aragon Divemaster Titanium GMT weigh?

About 184 g.

How much does the Aragon Divemaster Titanium GMT cost, and is it available?

It is in production, at a list price of $300.

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