Tissot Seastar 1000vsUnimatic Modello Uno U1-GMT
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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 Uno U1-GMT
Diameter
40mm
40mm
Thickness
12.5mm
n/a
Water Resistance
300m
300m
Power Reserve
80h
highest
41h
MSRP
$875
lowest
$950
Movement
Tissot Powermatic 80
Seiko NH34
Case
3 specsCrystal & Dial
4 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Tissot Seastar 1000 for its value and solid build, with one reviewer calling it a comfortable, sporty, and affordable everyday watch with a great case and dial ratio. However, some owners find the Tissot Seastar 1000 too large and poorly proportioned, citing small indices on larger dials and a difficult-to-read bezel. Criticisms also include a non-reflective crystal causing glare, mediocre lume, and a subpar bracelet, with some feeling it is underwhelming for the price compared to other divers. Overall, owners rate the Tissot Seastar 1000 highly for its value and solid build at the price point.
The 80-hour power reserve from the Powermatic 80 movement is a significant strength. Reviewers did not reach a consensus on any weaknesses.
The Unimatic Modello Uno U1-GMT is praised for its minimalist, utilitarian design that blends vintage cues with modern robustness, featuring a matte black dial with a phantom ladder handset and a hollowed-out GMT hand. Owners widely report the Unimatic cases are very well finished, with impressive quality for the price. Some reviewers note the Seiko NH34A movement's stated accuracy of -20/+40 seconds per day is decent at best, and one owner describes the watch as a bit "chonky." The 120-click unidirectional bezel is considered a missed opportunity for a GMT function, which would benefit from a bidirectional bezel. Overall, owners and reviewers rate the Unimatic Modello Uno U1-GMT highly for its striking design and value.
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