Side by side
Casio GM-B2100SDvsOblvlo CM Skeleton
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
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At a glance
15 of 29 specs differDiameter
GM-B2100SD44.4mm
CM Skeleton42mm
Power Reserve
GM-B2100SD—
CM Skeleton—
Water Resistance
GM-B2100SD200m
CM Skeleton50m
MSRP
GM-B2100SD$600
CM Skeleton$202
Full specifications
Case
7 specsCategory
Sport
Chronograph
Diameter
44.4mm
42mm
Thickness
12.8mm
12mm
Lug-to-Lug
49.8mm
0mm
Lug Width
—
0mm
Finish
—
—
Water Resistance
200m
50m
Crystal & Dial
4 specsCrystal
Mineral
Sapphire
AR Coating
No
—
Dial Color
Black
—
Lume
None
Super-LumiNova
Movement
3 specsCaliber
—
—
Type
Quartz
Automatic
Power Reserve
—
0h
Pricing
1 specsMSRP
$600
$202
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