Side by side

Casio GM-B2100SDvsSpinnaker Hass Automatic

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
Hass Automatic
SpinnakerHass Automatic
MSRP $445
See the full Hass Automatic
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At a glance

15 of 29 specs differ
Diameter
GM-B2100SD44.4mm
Hass Automatic43mm
Power Reserve
GM-B2100SD—
Hass Automatic—
Water Resistance
GM-B2100SD200m
Hass Automatic300m
MSRP
GM-B2100SD$600
Hass Automatic$445

Full specifications

Case

8 specs
Category
Sport
Diver
Diameter
44.4mm
43mm
Thickness
12.8mm
16.5mm
Lug-to-Lug
49.8mm
50mm
Lug Width
—
22mm
Material
Stainless Steel
316L Stainless Steel
Finish
—
—
Water Resistance
200m
300m

Crystal & Dial

3 specs
Crystal
Mineral
Sapphire
AR Coating
No
—
Dial Color
Black
Flying Dutchman

Movement

3 specs
Caliber
—
Seiko NH35
Type
Quartz
Automatic
Power Reserve
—
0h

Pricing

1 specs
MSRP
$600
$445
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