Side by side

Casio GM-B2100SDvsSeiko Coutura

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
Coutura
SeikoCoutura
MSRP $625
See the full Coutura
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Buy used on eBay ↗
Buy from Seiko ↗
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At a glance

15 of 29 specs differ
Diameter
GM-B2100SD44.4mm
Coutura45.3mm
Power Reserve
GM-B2100SD—
Coutura—
Water Resistance
GM-B2100SD200m
Coutura100m
MSRP
GM-B2100SD$600
Coutura$625

Full specifications

Case

7 specs
Category
Sport
GMT
Diameter
44.4mm
45.3mm
Thickness
12.8mm
11.5mm
Lug-to-Lug
49.8mm
0mm
Lug Width
—
12mm
Finish
—
—
Water Resistance
200m
100m

Crystal & Dial

4 specs
Crystal
Mineral
Sapphire
AR Coating
No
—
Dial Color
Black
—
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
—
8B92
Power Reserve
—
0h
Jewels
0
10

Pricing

1 specs
MSRP
$600
$625
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