Side by side
Casio GM-B2100SDvsOrient Star Avant-garde Skeleton
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
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At a glance
13 of 29 specs differDiameter
GM-B2100SD44.4mm
Avant-garde Skeleton42.6mm
Power Reserve
GM-B2100SD—
Avant-garde Skeleton50h
Water Resistance
GM-B2100SD200m
Avant-garde Skeleton100m
MSRP
GM-B2100SD$600
Avant-garde Skeleton$765
Full specifications
Case
6 specsCategory
Sport
Mechanical
Diameter
44.4mm
42.6mm
Thickness
12.8mm
13mm
Lug-to-Lug
49.8mm
49.2mm
Lug Width
—
21mm
Water Resistance
200m
100m
Crystal & Dial
2 specsCrystal
Mineral
Sapphire
AR Coating
No
Yes
Movement
4 specsCaliber
—
Orient F6F44
Type
Quartz
Automatic
Power Reserve
—
50h
Jewels
0
24
Pricing
1 specsMSRP
$600
$765
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