Side by side

Casio GMD-B300vsUndone Tachikoma

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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GMD-B300
CasioGMD-B300
MSRP $135
See the full GMD-B300
Tachikoma
UndoneTachikoma
MSRP $320
See the full Tachikoma
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At a glance

14 of 29 specs differ
Diameter
GMD-B30043.8mm
Tachikoma41.8mm
Power Reserve
GMD-B300—
Tachikoma—
Water Resistance
GMD-B300200m
Tachikoma100m
MSRP
GMD-B300$135
Tachikoma$320

Full specifications

Case

8 specs
Category
Sport
—
Diameter
43.8mm
41.8mm
Thickness
12mm
12.7mm
Lug-to-Lug
46.4mm
0mm
Lug Width
—
0mm
Material
Resin / Bio-based resin
Stainless Steel
Finish
—
—
Water Resistance
200m
100m

Crystal & Dial

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

Movement

2 specs
Caliber
—
Seiko VK63
Power Reserve
—
0h

Pricing

1 specs
MSRP
$135
$320
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