Side by side
Christopher Ward C63 Sealander Extreme GMTvsLum-Tec B68 Day Date
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
17 of 29 specs differDiameter
C63 Sealander Extreme GMT48mm
B68 Day Date44mm
Power Reserve
C63 Sealander Extreme GMT56h
B68 Day Date40h
Water Resistance
C63 Sealander Extreme GMT150m
B68 Day Date200m
MSRP
C63 Sealander Extreme GMT$1,850
B68 Day Date$595
Full specifications
Case
7 specsCategory
GMT
Sport
Diameter
48mm
44mm
Thickness
12.05mm
—
Lug-to-Lug
48mm
51.5mm
Material
Stainless Steel
316L Stainless Steel (DLC coated)
Finish
Brushed + Bead-blasted + Sandblasted
Brushed and polished
Water Resistance
150m
200m
Crystal & Dial
4 specsCrystal
Sapphire
Domed Sapphire
AR Coating
Underside
Inner
Dial Color
Black
B68 Day Date
Lume
SLN X1 BL / GL
None
Movement
5 specsCaliber
SW330
Ronda 515
Type
Automatic
Quartz
Beat Rate
4 vph
28,800 vph
Power Reserve
56h
40h
Complications
GMT, Moonphase, Day-date
None
Pricing
1 specsMSRP
$1,850
$595
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