Tissot Seastar 1000 GMTvsUnimatic Modello Quattro UT4-GMT Toolwatch GMT (40mm)

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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.

Tissot Seastar 1000 GMT at true scale

Seastar 1000 GMT

Unimatic Modello Quattro UT4-GMT Toolwatch GMT (40mm) at true scale

Modello Quattro UT4-GMT Toolwatch GMT (40mm)

Diameter

40mm

40mm

Thickness

11.8mm

n/a

Water Resistance

300m

300m

MSRP

$575

lowest

$655

Movement

11.5'

Ronda 515.24D

Case

4 specs
Thickness
11.77mm
n/a
Lug-to-Lug
n/a
n/a
Lug Width
20mm
n/a
Material
Stainless Steel
n/a

Crystal & Dial

3 specs
Crystal
Sapphire
n/a
Indices
Indexes
n/a
Lume
Super-LumiNova ®
None

Movement

1 specs
Caliber
11.5'
Ronda 515.24D

Pricing

1 specs
MSRP
$575
$655
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Tissot Seastar 1000 GMT

Owners widely praise the Tissot Seastar 1000 GMT for its sapphire crystal, improved finishing, and GMT complication, with one owner expressing deep satisfaction. A potential drawback noted by the community is that Swiss quartz movements, unlike some Japanese counterparts, may exhibit second hands that do not precisely align with dial markers. On balance, owners rate the Tissot Seastar 1000 GMT highly for its build quality and useful GMT function at its price point.

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

Owners widely praise the Unimatic Modello Quattro UT4-GMT Toolwatch GMT (40mm) for its robust, no-nonsense tool watch design, minimalist aesthetic, and utilitarian sandblasted finish. Its quartz GMT movement is noted for its reliability and ease of use, fitting well with its rugged concept, and the watch is MIL-STD-810 tested with successful drop tests reported. Some owners find the fixed 24-hour bezel purposeful, while others feel the minimalist design lacks character. The watch's short, non-curved lugs mean it sits flat on the wrist, which can be limiting on smaller wrists, though it wears well on average ones. On balance, owners and reviewers rate the Unimatic Modello Quattro UT4-GMT Toolwatch GMT (40mm) highly for its durable build and functional tool watch appeal at its price point.

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