Momentum M20 DSSvsTissot Seastar 1000 GMT

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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.

Momentum M20 DSS at true scale

M20 DSS

Tissot Seastar 1000 GMT at true scale

Seastar 1000 GMT

Diameter

42mm

40mm

Thickness

n/a

11.8mm

Water Resistance

200m

300m

highest

MSRP

$329

lowest

$575

Movement

Ronda 515

11.5'

Case

6 specs
Diameter
42mm
40mm
Thickness
n/a
11.77mm
Lug-to-Lug
n/a
n/a
Lug Width
n/a
20mm
Material
n/a
Stainless Steel
Water Resistance
200m
300m

Crystal & Dial

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

Movement

1 specs
Caliber
Ronda 515
11.5'

Pricing

1 specs
MSRP
$329
$575
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Reviews

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

Momentum M20 DSS

Owners widely praise the Momentum M20 DSS for its extreme toughness and go-anywhere, do-anything dive watch persona, with many noting its appearance significantly exceeds online depictions. Reviewers and owners alike highlight its acceptable fit and finish for the price, double-domed sapphire crystal, and machined clasp. The 42mm case is considered a great size for those who prefer larger watches, contributing to its lightness and long-term usability. One owner reports the bezel insert lume pip snapped off multiple times, though replacements were provided free of charge. On balance, owners rate the Momentum M20 DSS highly for its robust build and appealing aesthetics that punch above their price point.

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.

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