Side by side
Christopher Ward C63 Sealander GMTvsSerket Watch Co Reef Mariana
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
15 of 29 specs differDiameter
C63 Sealander GMT42mm
Reef Mariana40mm
Power Reserve
C63 Sealander GMT56h
Reef Mariana—
Water Resistance
C63 Sealander GMT150m
Reef Mariana200m
MSRP
C63 Sealander GMT$1,675
Reef Mariana$449
Full specifications
Case
8 specsCategory
GMT
—
Diameter
42mm
40mm
Thickness
11.5mm
13.2mm
Lug-to-Lug
48.5mm
47.5mm
Lug Width
22mm
20mm
Finish
Brushed + Polished + Sandblasted
Brushed and polished
Water Resistance
150m
200m
Caseback
Display
Solid
Crystal & Dial
2 specsDial Color
Blue
Orange
Lume
SLN X1 BL C1
BGW9
Movement
4 specsCaliber
SW330
Seiko NH35
Beat Rate
4 vph
28,800 vph
Power Reserve
56h
—
Complications
GMT, Moonphase, Day-date
None
Pricing
1 specsMSRP
$1,675
$449
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