Side by side
Alkin Watches Model OnevsChristopher Ward C63 Sealander Extreme GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
15 of 29 specs differDiameter
Model One42mm
C63 Sealander Extreme GMT48mm
Power Reserve
Model One—
C63 Sealander Extreme GMT56h
Water Resistance
Model One100m
C63 Sealander Extreme GMT150m
MSRP
Model One—
C63 Sealander Extreme GMT$1,850
Full specifications
Case
7 specsCategory
—
GMT
Diameter
42mm
48mm
Thickness
13.25mm
12.05mm
Lug-to-Lug
50mm
48mm
Lug Width
22mm
22mm
Finish
Brushed and polished
Brushed + Bead-blasted + Sandblasted
Water Resistance
100m
150m
Crystal & Dial
3 specsAR Coating
Inner
Underside
Dial Color
Green
Black
Lume
Super-LumiNova BGW9
SLN X1 BL / GL
Movement
4 specsCaliber
Seiko NH35A
SW330
Beat Rate
28,800 vph
4 vph
Power Reserve
—
56h
Complications
None
GMT, Moonphase, Day-date
Pricing
1 specsMSRP
—
$1,850
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