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Casio GM-B2100SDvsOrient Star Layered Skeleton

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

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At a glance

14 of 29 specs differ
Diameter
GM-B2100SD44.4mm
Layered Skeleton41mm
Power Reserve
GM-B2100SD
Layered Skeleton50h
Water Resistance
GM-B2100SD200m
Layered Skeleton100m
MSRP
GM-B2100SD$600
Layered Skeleton$615

Full specifications

Case

6 specs
Category
Sport
Mechanical
Diameter
44.4mm
41mm
Thickness
12.8mm
13.6mm
Lug-to-Lug
49.8mm
48.3mm
Lug Width
20mm
Water Resistance
200m
100m

Crystal & Dial

3 specs
Crystal
Mineral
Sapphire
AR Coating
No
Yes
Dial Color
Black
White

Movement

4 specs
Caliber
Orient F6F44
Type
Quartz
Automatic
Power Reserve
50h
Jewels
0
24

Pricing

1 specs
MSRP
$600
$615
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