Side by side
Serket Watch Co Blackpool GMTvsSpinnaker Dumas Automatic
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
Blackpool GMT40mm
Dumas Automatic44mm
Power Reserve
Blackpool GMT—
Dumas Automatic40h
Water Resistance
Blackpool GMT200m
Dumas Automatic300m
MSRP
Blackpool GMT$379
Dumas Automatic$239
Full specifications
Case
7 specsCategory
—
Diver
Diameter
40mm
44mm
Thickness
11.5mm
15mm
Lug-to-Lug
47mm
48mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
300m
Crystal & Dial
2 specsDial Color
Beige
Blue
Lume
SuperLuminova
None
Movement
2 specsCaliber
Seiko NH34
SII NH35A
Power Reserve
—
40h
Pricing
1 specsMSRP
$379
$239
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