Side by side

Casio B640vsTissot PRC 100 Solar

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

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B640
CasioB640
MSRP $80
See the full B640
PRC 100 Solar
TissotPRC 100 Solar
MSRP $575
See the full PRC 100 Solar
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At a glance

15 of 29 specs differ
Diameter
B64035mm
PRC 100 Solar39mm
Power Reserve
B640—
PRC 100 Solar—
Water Resistance
B64050m
PRC 100 Solar100m
MSRP
B640$80
PRC 100 Solar$575

Full specifications

Case

7 specs
Diameter
35mm
39mm
Thickness
9.4mm
9.22mm
Lug-to-Lug
38.9mm
39mm
Lug Width
—
20mm
Material
Resin
Stainless Steel
Finish
—
—
Water Resistance
50m
100m

Crystal & Dial

5 specs
Crystal
Acrylic
Sapphire
AR Coating
No
—
Dial Color
Black
Silver
Indices
—
Indexes
Lume
None
Super-LumiNova ®

Movement

2 specs
Caliber
—
11.5'
Power Reserve
—
0h

Pricing

1 specs
MSRP
$80
$575
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