Side by side

Casio GM-B2100SDvsOrient Star Semi Skeleton

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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GM-B2100SD
CasioGM-B2100SD
MSRP $600
See the full GM-B2100SD
Semi Skeleton
Orient StarSemi Skeleton
MSRP $535
See the full Semi Skeleton
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At a glance

13 of 29 specs differ
Diameter
GM-B2100SD44.4mm
Semi Skeleton40mm
Power Reserve
GM-B2100SD—
Semi Skeleton50h
Water Resistance
GM-B2100SD200m
Semi Skeleton50m
MSRP
GM-B2100SD$600
Semi Skeleton$535

Full specifications

Case

6 specs
Category
Sport
Mechanical
Diameter
44.4mm
40mm
Thickness
12.8mm
12.7mm
Lug-to-Lug
49.8mm
46.5mm
Lug Width
—
20mm
Water Resistance
200m
50m

Crystal & Dial

2 specs
Crystal
Mineral
—
Dial Color
Black
White

Movement

4 specs
Caliber
—
Orient F6F42
Type
Quartz
Automatic
Power Reserve
—
50h
Jewels
0
24

Pricing

1 specs
MSRP
$600
$535
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