Tissot Seastar 1000 GMTvsUnimatic Modello Quattro UT4-AA

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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-AA at true scale

Modello Quattro UT4-AA

Diameter

40mm

40mm

Thickness

11.8mm

2.8mm

lowest

Water Resistance

300m

300m

MSRP

$575

lowest

$610

Movement

11.5'

Seiko VH31

Case

3 specs
Thickness
11.77mm
2.8mm
Lug-to-Lug
n/a
n/a
Lug Width
20mm
22mm

Crystal & Dial

3 specs
Dial Color
Black
n/a
Indices
Indexes
n/a
Lume
Super-LumiNova ®
None

Movement

1 specs
Caliber
11.5'
Seiko VH31

Pricing

1 specs
MSRP
$575
$610
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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-AA

The Unimatic Modello Quattro UT4-AA is praised for its rugged, no-nonsense tool watch aesthetic and its execution, with reviewers noting its familiar yet fresh design and military character enhanced by a fixed bezel and brushed finish. Owners appreciate its simple, brutalist design as a standout piece, though one owner initially found Unimatic's design overly minimalist with excessive empty dial space. The watch features a sandblasted gunmetal-coated finish and a Brinzio Green dial, with a slimmer 12.05mm case achieved with a Seiko VH31 quartz movement, making it a stylish, very wearable, and affordable option. Some owners find the strap stiff and difficult to tighten, expecting it to break in. The lugs' lack of downward curvature may cause it to sit flat on smaller or rounder wrists. Overall, owners and reviewers rate the Unimatic Modello Quattro UT4-AA highly for its rugged tool watch aesthetic and wearable, affordable quartz execution.

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