lug2lug
BrowseCompareNewsCommunityMy Watches
BrowseCompareNewsCommunityMy Watches
Theme
Popular microbrands:Christopher Ward·Baltic·anOrdain·Atelier Wen·Boldr·Bremont·Dan Henry·DOXABrowse all →
Best, by the specs:Best dress watches·Diver under $2,000·Chronograph under $5,000·Sport under $5,000·GMT under $5,000·Field under $500·Pilot under $2,000·Casual under $1,000All rankings →
Glossary:Lug-to-Lug·Water Resistance·Chronograph·GMT·Automatic·LumeBrowse all →
Tools:Collection tracker·Wrist-fit calculator·What should I buy?·Value retention rankings·iPhone app
Lug2Letter
Watches worth knowing about, weekly.
Curated discoveries, founder spotlights, and the occasional deep-dive.
Get the app
Download on theApp StoreGET IT ONGoogle Play
TermsPrivacyCopyrightDisclosuresContactContribute

Independent reference site · not affiliated with any brand · contains affiliate links

© 2026 Lug2Lug LLC · Prices are estimates and not offers

Loading watch
Home/Browse/Unimatic/Modello Quattro UT4-GMT Toolwatch GMT (40mm)
Unimatic Modello Quattro UT4-GMT Toolwatch GMT (40mm)
Click to inspect
Ask the communityStart a discussion about the Modello Quattro UT4-GMT Toolwatch GMT (40mm) — get takes from other collectors.Ask →
Unimatic · Modello Quattro UT4-GMT Toolwatch GMT

Unimatic Modello Quattro UT4-GMT Toolwatch GMT (40mm)

Diver

$655In stock
Find used on eBay

Case

Diameter
40mm
Water resistance
300m

Crystal & dial

Dial colour
Black

Movement

Caliber
Ronda 515.24D
Type
Quartz
Hacking
No
Hand-winding
No
Complications
Time only

Design language

Case shape
round
Dial style
matte
Bezel
rotating
Bracelet
nato
Hands
baton

AI-detected from the product image

2 colorways

Alternatives

02The connection engine

More like this.

Unimatic Modello Quattro UT4-U-TI-GMT Ultratool GMT

Unimatic

Modello Quattro UT4-U-TI-GMT Ultratool GMT

40mm · Quartz$840

Unimatic Modello Uno UT1-GMT Toolwatch GMT (41.5mm)

Unimatic

Modello Uno UT1-GMT Toolwatch GMT (41.5mm)

41.5mm · Quartz$760

Unimatic Modello Uno UT1 Toolwatch Diver (41.5mm)

Unimatic

Modello Uno UT1 Toolwatch Diver (41.5mm)

41.5mm · Quartz$620

Elliot Brown BEACHMASTER

Elliot Brown

BEACHMASTER

40mm · Quartz$855

Smiths PRECISTA MISSION TIMER PRS-56

Smiths

PRECISTA MISSION TIMER PRS-56

40mm · Quartz$530

Sangin Instruments Merlin

Sangin Instruments

Merlin

39mm · Quartz$569

View all alternatives

03The community take

Owners talk.

“

The Unimatic Modello Quattro UT4-GMT Toolwatch GMT earns strong praise for its rugged engineering and practical design. Reviewers highlight its 360° shock-absorption system and MIL-STD-810 certification—all five prototypes survived 26 drop tests from 4 feet onto concrete—alongside the reliable Ronda 515.24D quartz GMT movement. The short, non-curved lugs sit flat on the wrist, though owners with smaller wrists may find this less comfortable; an owner on a 7.5-inch wrist reports it super comfortable and easy to read. At 80.5 grams, it wears only slightly oversized even on a 6.75-inch wrist. One reviewer notes the titanium variant offers lighter weight and larger dial numerals for improved legibility over the stainless steel version, though the titanium crown is less smooth. Overall, the Modello Quattro UT4-GMT is widely valued for its durable, tool-focused engineering and straightforward quartz reliability at its price point.

Synthesized from 3 sources
A Blog to Watch↗
Fratello↗
Reddit↗
Open the discussion

On real wrists

No shots yet. Show how it wears.

04The paper trail

05The discussion

Talk about the Unimatic Modello Quattro UT4-GMT Toolwatch GMT (40mm).