Tissot Seastar 1000 GMTvsUnimatic Modello Uno UT1

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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 Uno UT1 at true scale

Modello Uno UT1

Diameter

40mm

40mm

Thickness

11.8mm

2.5mm

lowest

Water Resistance

300m

300m

MSRP

$575

lowest

$780

Movement

11.5'

Seiko VH31

Case

3 specs
Thickness
11.77mm
2.5mm
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
$780
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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 Uno UT1

The Unimatic Modello Uno UT1 is widely praised for its minimalistic, utilitarian design and rugged build, meeting MIL-STD-810H standards. Owners and reviewers highlight its clean dial, rotating timing bezel, and the Seiko VH31 mecaquartz movement, which offers quartz accuracy with a sweeping seconds hand. The case finishing, with a mix of brushed and polished elements, is noted as impressive and offering good value. Lume performance is strong, though some sources mention slight unevenness. The watch is described as a practical, durable, and versatile tool watch. Some reviewers note a lack of AR-coating on the sapphire crystal and a rigid polyurethane strap material. One owner finds the steel case finishing lacks refinement, while another finds the "faux patina" lume gimmicky. The 40mm case size is generally considered wearable, though one source notes a beefier feel on the wrist due to its size and thickness.

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