Unimatic Modello Quattro Ultratool UT4-U-TI-GMT
Unimatic is an Italian maker of pared-back tool watches, and the Ultratool UT4-U-TI-GMT is its travel version in sandblasted Grade 2 titanium, a limited edition of 99 numbered pieces. It runs on a Swiss Ronda 515.24D quartz movement, which shows a second time zone in a window at 12 o'clock and the date at 6, so the dial stays as spare as Unimatic's time-only watches. The case is 40 mm across, 12.3 mm thick and 49 mm lug to lug, individually tested to 300 m, with an 8 mm screw-down crown, a 2.8 mm flat sapphire crystal and Unimatic's shock-protection system, and it carries MIL-STD-810H certification. The head weighs 53 g. It came on a three-layer nylon strap in black and international orange at $840, and the edition has since sold out, so Unimatic now files it in its archive.
Written 28 September 2026 from Unimatic's product page.

- Type
- Field
- Case diameter
- 40.0 mm
- Thickness
- 12.3 mm
- Lug-to-lug
- 49 mm
- Origin
- Italy
- Movement
- Quartz (GMT)
- Caliber
- Ronda 515.24D
- Complications
- GMT, Date
- Colour
- Grey
- Surface treatment
- Sandblasted
- Finish technology
- Natural finish
- Nickel-free
- Unconfirmed (contact-point materials not all confirmed)
- Bracelet / strap
- Three-layer nylon strap
- Crystal
- Flat sapphire, inner AR coating
- Display back
- No
- Dial
- Matte black, GMT window at 12, date at 6, orange accents
- Dial colours
- Black
- Lume
- Super-LumiNova GL C1
- Availability
- No longer offered
- Status
- Archived by the maker (limited edition of 99, sold out)
- Not published
- Reference, Power reserve, Hardness, Construction, Caseback, Matching bracelet
Browse all watch comparisons →
Similar watches
Alternatives to the Unimatic Modello Quattro Ultratool UT4-U-TI-GMT
More watches from Unimatic
Frequently asked questions
What grade of titanium is the Unimatic Modello Quattro Ultratool UT4-U-TI-GMT?
Grade 2, as stated by the maker.
What size is the Unimatic Modello Quattro Ultratool UT4-U-TI-GMT?
The case is 40 mm across, 12.3 mm thick and 49 mm from lug to lug. It is water resistant to 300 m.
How much does the Unimatic Modello Quattro Ultratool UT4-U-TI-GMT weigh?
About 53 g for the watch head alone.
How much does the Unimatic Modello Quattro Ultratool UT4-U-TI-GMT cost, and is it available?
It is no longer made, so the only way to buy one is used. Its list price when it was in production was $840.
All Unimatic watches · Field watches · All 1,960 watches
Learn: Titanium grades · Surface treatments · Why titanium scratches · How to read a spec
How we verify & grade · Image & Trademark Policy · Terms & Conditions · Privacy Policy