Side by side
Serket Watch Co Blackpool GMTvsSpinnaker Challenger Automatic
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
Blackpool GMT40mm
Challenger Automatic42mm
Power Reserve
Blackpool GMT—
Challenger Automatic40h
Water Resistance
Blackpool GMT200m
Challenger Automatic200m
MSRP
Blackpool GMT$379
Challenger Automatic$289
Full specifications
Case
6 specsCategory
—
Diver
Diameter
40mm
42mm
Thickness
11.5mm
19mm
Lug-to-Lug
47mm
49.5mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Crystal & Dial
2 specsDial Color
Beige
Blue
Lume
SuperLuminova
None
Movement
2 specsCaliber
Seiko NH34
SII NH35A
Power Reserve
—
40h
Pricing
1 specsMSRP
$379
$289
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