Side by side
CWC RN Automatic Divers Watch Mk.2vsGrand Seiko SBGM221
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
RN Automatic Divers Watch Mk.241mm
SBGM22139.5mm
Power Reserve
RN Automatic Divers Watch Mk.240h
SBGM22172h
Water Resistance
RN Automatic Divers Watch Mk.2300m
SBGM22130m
MSRP
RN Automatic Divers Watch Mk.2$1,249
SBGM221$5,400
Full specifications
Case
6 specsCategory
Diver
GMT
Diameter
41mm
39.5mm
Thickness
12mm
13.7mm
Lug-to-Lug
47mm
46.9mm
Lug Width
20mm
19mm
Water Resistance
300m
30m
Crystal & Dial
3 specsAR Coating
Inner
Yes
Dial Color
CWC RN Automatic Divers Watch Mk.2, Stainless Steel (RN300-MT AS120)
Black
Lume
Super-LumiNova
None
Movement
2 specsCaliber
Sellita SW200-1
9S66
Power Reserve
40h
72h
Pricing
1 specsMSRP
$1,249
$5,400
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