The Wristwatch Field Guide

Big Idea Design Ti GMT

The Big Idea Design Ti GMT is a current-production field watch with a grey grade 2 (ultrahex hardened) case, finished with ultrahex hardened titanium. It measures 40.5 mm across, 53 g, and is water resistant to 200 m. Inside is the Miyota 9075 automatic (gmt) movement, with 42 h power reserve. Complications: GMT, Date. Priced from $975 (maker price). Brand origin: United States.

Titanium and ceramic field watchesTitaniumGMTDisplay backUnder $5,000
Reference
Type
Field
Price
$975 · maker price
Case diameter
40.5 mm
Thickness
Lug-to-lug
Water resistance
200 m
Weight
53 g (head only)
Origin
United States
Movement
Automatic (GMT)
Caliber
Miyota 9075
Power reserve
42 h
Complications
GMT, Date
Material
Titanium
Grade / type
Grade 2 (UltraHex hardened)
Colour
Grey
Hardness
Construction
Surface treatment
UltraHex hardened titanium
Caseback
Titanium
Nickel-free
No (steel contact)
Bracelet / strap
Titanium
Matching bracelet
Crystal
Sapphire
Display back
Yes
Dial
Black
Lume
Super-LumiNova
Availability
Offered
Status
Current
High confidence Verified Jun 2026 Source: Big Idea Design Maker / listing ↗
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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 grey grade 2 (ultrahex hardened) 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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