Helgray Poseidon Diver (Automatic)vsTissot Seastar 1000
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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.

Poseidon Diver (Automatic)

Seastar 1000
Diameter
40mm
40mm
Thickness
12.8mm
12.5mm
lowest
Water Resistance
300m
300m
Power Reserve
n/a
80h
MSRP
$249
lowest
$875
Movement
Seiko NH35
Tissot Powermatic 80
Case
3 specsThickness
12.8mm
12.48mm
Lug-to-Lug
n/a
n/a
Lug Width
22mm
20mm
Crystal & Dial
4 specsAR Coating
n/a
Yes
Dial Color
n/a
Graded grey-black
Indices
n/a
Indexes
Lume
None
Super-LumiNova ®
Movement
2 specsCaliber
Seiko NH35
Tissot Powermatic 80
Power Reserve
0h
80h
Pricing
1 specsMSRP
$249
$875
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