Side by side

Casio GM-B2100SDvsOblvlo RX Day-Date

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
RX Day-Date
OblvloRX Day-Date
MSRP $336
See the full RX Day-Date
Buy from Casio ↗
Buy used on eBay ↗
Buy from Oblvlo ↗
Buy used on eBay ↗

At a glance

16 of 29 specs differ
Diameter
GM-B2100SD44.4mm
RX Day-Date40mm
Power Reserve
GM-B2100SD—
RX Day-Date42h
Water Resistance
GM-B2100SD200m
RX Day-Date50m
MSRP
GM-B2100SD$600
RX Day-Date$336

Full specifications

Case

7 specs
Category
Sport
Dress
Diameter
44.4mm
40mm
Thickness
12.8mm
11mm
Lug-to-Lug
49.8mm
0mm
Lug Width
—
21mm
Finish
—
—
Water Resistance
200m
50m

Crystal & Dial

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

Movement

5 specs
Caliber
—
Miyota 8285
Type
Quartz
Automatic
Power Reserve
—
42h
Jewels
0
21
Complications
None
Day, Date

Pricing

1 specs
MSRP
$600
$336
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