Side by side
Christopher Ward C63 Sealander GMTvsOak & Oscar The Humboldt GMT USSS Edition
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
16 of 29 specs differDiameter
C63 Sealander GMT42mm
The Humboldt GMT USSS Edition39.5mm
Power Reserve
C63 Sealander GMT56h
The Humboldt GMT USSS Edition56 hoursh
Water Resistance
C63 Sealander GMT150m
The Humboldt GMT USSS Edition200m
MSRP
C63 Sealander GMT$1,675
The Humboldt GMT USSS Edition$2,200
Full specifications
Case
8 specsDiameter
42mm
39.5mm
Thickness
11.5mm
12.5mm
Lug-to-Lug
48.5mm
46.8mm
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed + Polished + Sandblasted
Brushed and polished
Water Resistance
150m
200m
Caseback
Display
Engraved
Crystal & Dial
3 specsCrystal Shape
Flat
Double-domed
Dial Color
Blue
Black
Lume
SLN X1 BL C1
Super-LumiNova BGW9
Movement
4 specsCaliber
SW330
Sellita SW330
Beat Rate
4 vph
28,800 vph
Power Reserve
56h
56 hoursh
Complications
GMT, Moonphase, Day-date
None
Pricing
1 specsMSRP
$1,675
$2,200
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