Tissot Seastar 1000 Quartz ChronographvsUnimatic 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 Quartz Chronograph at true scale

Seastar 1000 Quartz Chronograph

Unimatic Modello Uno UT1 at true scale

Modello Uno UT1

Diameter

38mm

40mm

Thickness

12.9mm

2.5mm

lowest

Water Resistance

300m

300m

MSRP

$650

lowest

$780

Movement

Quartz

Seiko VH31

Case

4 specs
Diameter
38mm
40mm
Thickness
12.95mm
2.5mm
Lug-to-Lug
n/a
n/a
Lug Width
18mm
22mm

Crystal & Dial

4 specs
AR Coating
Yes
n/a
Dial Color
Graded turquoise
n/a
Indices
Indexes
n/a
Lume
Super-LumiNova ®
None

Movement

1 specs
Caliber
n/a
Seiko VH31

Pricing

1 specs
MSRP
$650
$780
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Reviews

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

Tissot Seastar 1000 Quartz Chronograph

Owners widely praise the Tissot Seastar 1000 Quartz Chronograph for its excellent finishing and solid build at its price point, with many highlighting its value as a summer watch. However, some find the dial busy and the hands/indices ill-proportioned, while others criticize the bracelet clasp as flimsy and the bezel lume dot changing color. Accuracy varies, with one owner noting +25 sec/day before regulation and another reporting it as accurate for a quartz movement. Overall, owners and reviewers rate the Tissot Seastar 1000 Quartz Chronograph highly for its impressive value and build quality.

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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