Tissot Seastar 1000vsUnimatic Modello Quattro UT4-TW Collab Time Only
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Seastar 1000

Modello Quattro UT4-TW Collab Time Only
Diameter
36mm
40mm
Thickness
9.7mm
n/a
Water Resistance
300m
300m
MSRP
$515
lowest
$595
Movement
Quartz
Seiko VH31
Case
5 specsCrystal & Dial
5 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners praise the Tissot Seastar 1000 for its 300m water resistance and Swiss quartz movement at its price point, with some highlighting its solid build and value. However, criticisms include ill-proportioned hands and indices, a bezel that can be hard to read, and unremarkable lume. Some owners find the bracelet clasp flimsy, and the lack of anti-reflective coating causes glare. Overall, owners rate the Tissot Seastar 1000 well for its robust water resistance and value proposition in a Swiss quartz package.
The Powermatic 80 movement with its 80-hour power reserve is a shared strength. Reviewers also agree that the 40mm case size significantly improves wearability.
The Unimatic Modello Quattro UT4-TW Collab Time Only is praised for its robust, MIL-STD-810 certified build and minimalist design, with one owner appreciating its simple and clean aesthetic after initial reservations. However, one owner disliked the TPU strap and experienced a recurring rotor issue requiring a lengthy and poor customer service experience for repair. The watch features a 40mm sandblasted steel case, which may sit flat on smaller or round wrists due to less downward lug curvature. Overall, owners and reviewers rate the Unimatic Modello Quattro UT4-TW Collab Time Only highly for its rugged build and clean design.
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