Side by side
Aera Instruments M-1vsChristopher Ward C63 Sealander Extreme GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
16 of 29 specs differDiameter
M-139mm
C63 Sealander Extreme GMT48mm
Power Reserve
M-142h
C63 Sealander Extreme GMT56h
Water Resistance
M-1100m
C63 Sealander Extreme GMT150m
MSRP
M-1—
C63 Sealander Extreme GMT$1,850
Full specifications
Case
7 specsCategory
—
GMT
Diameter
39mm
48mm
Thickness
13.14mm
12.05mm
Lug-to-Lug
47.6mm
48mm
Lug Width
20mm
22mm
Finish
Brushed and polished
Brushed + Bead-blasted + Sandblasted
Water Resistance
100m
150m
Crystal & Dial
3 specsAR Coating
Inner
Underside
Dial Color
Dune
Black
Lume
Super-LumiNova
SLN X1 BL / GL
Movement
5 specsCaliber
Sellita SW216-1
SW330
Type
Manual
Automatic
Beat Rate
28,800 vph
4 vph
Power Reserve
42h
56h
Complications
None
GMT, Moonphase, Day-date
Pricing
1 specsMSRP
—
$1,850
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