Side by side
Christopher Ward C63 Sealander Extreme GMTvsOak & Oscar The Humboldt GMT Titanium
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 Extreme GMT40mm
The Humboldt GMT Titanium39.5mm
Power Reserve
C63 Sealander Extreme GMT56h
The Humboldt GMT Titanium56 hoursh
Water Resistance
C63 Sealander Extreme GMT150m
The Humboldt GMT Titanium200m
MSRP
C63 Sealander Extreme GMT$2,075
The Humboldt GMT Titanium$2,950
Full specifications
Case
7 specsDiameter
40mm
39.5mm
Thickness
12.05mm
12.5mm
Lug-to-Lug
48mm
46.8mm
Lug Width
22mm
20mm
Material
Stainless Steel
Grade 5 Titanium
Water Resistance
150m
200m
Caseback
Solid
Solid screw-down
Crystal & Dial
4 specsCrystal Shape
Flat
Double-domed
AR Coating
Inner
Underside
Dial Color
Black
Green
Lume
SLN X1 BL / GL
Super-LumiNova
Movement
3 specsCaliber
SW330-2
Sellita SW330
Power Reserve
56h
56 hoursh
Complications
GMT
None
Pricing
1 specsMSRP
$2,075
$2,950
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