Side by side
Casio B640vsSwatch Masa
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
14 of 29 specs differDiameter
B64035mm
Masa34mm
Power Reserve
B640—
Masa—
Water Resistance
B64050m
Masa30m
MSRP
B640$80
Masa$80
Full specifications
Case
7 specsCategory
Sport
Mechanical
Diameter
35mm
34mm
Thickness
9.4mm
8.75mm
Lug-to-Lug
38.9mm
39.2mm
Material
Resin
Bio-sourced Material
Finish
—
Bio-sourced material
Water Resistance
50m
30m
Crystal & Dial
2 specsCrystal
Acrylic
—
AR Coating
No
—
Movement
4 specsCaliber
—
—
Power Reserve
—
0h
Hacking
No
Yes
Hand-winding
No
Yes
Pricing
1 specsMSRP
$80
$80
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