Side by side
Serket Watch Co Blackpool GMTvsSheffield Deep Gray 300
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
10 of 29 specs differDiameter
Blackpool GMT40mm
Deep Gray 30042mm
Power Reserve
Blackpool GMT—
Deep Gray 30040h
Water Resistance
Blackpool GMT200m
Deep Gray 300300m
MSRP
Blackpool GMT$379
Deep Gray 300$258
Full specifications
Case
5 specsDiameter
40mm
42mm
Thickness
11.5mm
13.8mm
Lug-to-Lug
47mm
52mm
Lug Width
20mm
22mm
Water Resistance
200m
300m
Crystal & Dial
2 specsDial Color
Beige
—
Lume
SuperLuminova
None
Movement
2 specsCaliber
Seiko NH34
Seiko NH35
Power Reserve
—
40h
Pricing
1 specsMSRP
$379
—
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