Side by side
Tissot Seastar 1000 GMTvsUnimatic Modello Quattro UT4-GMT Toolwatch GMT (40mm)
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
7 of 29 specs differDiameter
Seastar 1000 GMT40mm
Modello Quattro UT4-GMT Toolwatch GMT (40mm)40mm
Power Reserve
Seastar 1000 GMT40h
Modello Quattro UT4-GMT Toolwatch GMT (40mm)40h
Water Resistance
Seastar 1000 GMT300m
Modello Quattro UT4-GMT Toolwatch GMT (40mm)300m
MSRP
Seastar 1000 GMT$575
Modello Quattro UT4-GMT Toolwatch GMT (40mm)$655
Full specifications
Case
3 specsCategory
Diver
—
Thickness
11.77mm
12mm
Lug-to-Lug
40mm
46mm
Crystal & Dial
2 specsIndices
Indexes
Applied
Lume
Super-LumiNova ®
None
Movement
1 specsCaliber
11.5'
Ronda 515.24D (quartz GMT)
Pricing
1 specsMSRP
$575
$655
More watches worth a look
Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.
Follow this matchup
Get a note when Tissot Seastar 1000 GMT vs Unimatic Modello Quattro UT4-GMT Toolwatch GMT (40mm) gets more votes, a community discussion, or a price drop. No account needed.
People also compared
Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.
CWC RN Quartz Divers Watch Mk.2 Day/Date, Matte TopvsUnimatic Modello Quattro UT4-GMT Toolwatch GMT (40mm)CWC Quartz Divers Watch Mk.2 Day/Date Polished CasevsUnimatic Modello Quattro UT4-GMT Toolwatch GMT (40mm)Unimatic Modello Quattro UT4-GMT Toolwatch GMT (40mm)vsVaer DS2 Meridian QuartzUnimatic Modello Quattro UT4-GMT Toolwatch GMT (40mm)vsVaer D4 Outerknown Solar DiverTissot Seastar 1000 GMTvsUnimatic Modello Quattro UT4-U-TI-GMT Ultratool GMTTissot Seastar 1000 GMTvsUnimatic Modello Uno UT1-GMT Toolwatch GMT (41.5mm)













