The Wristwatch Field Guide

Big Idea Design Ti GMT

The Big Idea Design Ti GMT is a current-production field watch with a grade 2 (ultrahex hardened) titanium case, finished with ultrahex hardened titanium. At 53 g it sits around the middle for field watches in the guide, and is priced above the $599 median for the category. The caseback is open, so the movement is visible.

All Big Idea Design watchesExotic-material field watchesTitaniumGMTDisplay backUnder $5,000
Price
$975
Material
Titanium
Grade / type
Grade 2 (UltraHex hardened)
Weight
53 g (head only)
Water resistance
200 m
Type
Field
Case diameter
40.5 mm
Origin
United States
Movement
Automatic (GMT)
Caliber
Miyota 9075
Power reserve
42 h
Complications
GMT, Date
Colour
Grey
Surface treatment
UltraHex hardened titanium
Caseback
Titanium
Nickel-free
No (steel contact)
Bracelet / strap
Titanium
Crystal
Sapphire
Display back
Yes
Dial
Black
Dial colours
Black
Lume
Super-LumiNova
Availability
Offered
Status
Current
Not published
Reference, Thickness, Lug-to-lug, Hardness, Construction, Matching bracelet
High confidence Verified Jul 2026 Source: Big Idea Design
Facts are free to cite with a link.
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Frequently asked questions

Is the Big Idea Design Ti GMT nickel-free?

No. At least one part that touches the skin is nickel-bearing steel (commonly the caseback or clasp), so the guide does not mark it nickel-free.

What is the case material of the Big Idea Design Ti GMT?

The Big Idea Design Ti GMT has a grade 2 (ultrahex hardened) titanium case with a titanium caseback. This is confirmed against the maker spec.

What size is the Big Idea Design Ti GMT?

It is 40.5 mm in diameter, and water resistant to 200 m.

How much does the Big Idea Design Ti GMT weigh?

About 53 g (head).

How much does the Big Idea Design Ti GMT cost, and is it available?

It is current-production and lists from $975.

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