Sheffield Allsport Diver 1vsTissot 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.

Sheffield Allsport Diver 1 at true scale

Allsport Diver 1

Tissot Seastar 1000 GMT at true scale

Seastar 1000 GMT

Diameter

40mm

40mm

Lug-to-Lug

48mm

n/a

Thickness

13mm

11.8mm

lowest

Water Resistance

200m

300m

highest

MSRP

n/a

$575

Movement

Seiko NH35

11.5'

Case

3 specs
Thickness
13mm
11.77mm
Lug-to-Lug
48mm
n/a
Water Resistance
200m
300m

Crystal & Dial

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

Movement

2 specs
Caliber
Seiko NH35
11.5'
Power Reserve
n/a
0h

Pricing

1 specs
MSRP
n/a
$575
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Reviews

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

Sheffield Allsport Diver 1

Owners widely praise the Sheffield Allsport Diver 1 for its superb quality and sturdiness at an affordable price, with one owner noting its scratch resistance despite heavy use. The blue dial is a particular highlight, and the watch is considered a substantial upgrade from entry-level options. Some owners note the bezel action could be crisper, and the lack of a quick-set date is a functional drawback for some. One owner found the caseback exceptionally difficult to remove during servicing. Overall, owners rate the Sheffield Allsport Diver 1 highly for its surprising quality and appearance at its 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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