Tissot Seastar 1000vsUnimatic Modello Uno U1S-GMT-RR

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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 U1S-GMT-RR
Diameter
40mm
40mm
Thickness
12.5mm
n/a
Water Resistance
300m
300m
Power Reserve
80h
n/a
MSRP
$875
lowest
$2,060
Movement
Tissot Powermatic 80
ETA 2893-2
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.
Owners praise the Unimatic Modello Uno U1S-GMT-RR for its recognizable minimalist design and excellent case finishing, with one owner finding the price impressive for the quality. The watch features a 40mm brushed stainless steel case and a matte black dial with Super-Luminova markers. Some reviewers note the 120-click 24-hour bezel would be more purposeful with hourly clicks, and one owner finds its lume useless at night. The Seiko NH34A automatic movement is stated to run with an accuracy of -20/+40 seconds per day. On balance, owners and reviewers appreciate the Unimatic Modello Uno U1S-GMT-RR for its utilitarian aesthetic and build quality, despite some functional critiques of the bezel and lume.
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