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Casio GM-B2100SDvsLum-Tec B70

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
B70
Lum-TecB70
MSRP $1,095
See the full B70
Buy from Casio ↗
Buy used on eBay ↗
Buy from Lum-Tec ↗
Buy used on eBay ↗

At a glance

12 of 29 specs differ
Diameter
GM-B2100SD44.4mm
B7044mm
Power Reserve
GM-B2100SD—
B70—
Water Resistance
GM-B2100SD200m
B70200m
MSRP
GM-B2100SD$600
B70$1,095

Full specifications

Case

6 specs
Diameter
44.4mm
44mm
Thickness
12.8mm
13.6mm
Lug-to-Lug
49.8mm
51.5mm
Lug Width
—
22mm
Material
Stainless Steel
316L Stainless Steel (DLC coated)
Finish
—
—

Crystal & Dial

3 specs
Crystal
Mineral
Domed Sapphire
AR Coating
No
—
Dial Color
Black
B70

Movement

2 specs
Caliber
—
Ronda 515
Power Reserve
—
0h

Pricing

1 specs
MSRP
$600
$1,095
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