Side by side
Aigi Watches POLAR DAY 40MMvsSlow Watches Jo series
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
7 of 29 specs differDiameter
POLAR DAY 40MM40mm
Jo series38mm
Power Reserve
POLAR DAY 40MM40h
Jo series40h
Water Resistance
POLAR DAY 40MM50m
Jo series100m
MSRP
POLAR DAY 40MM$179
Jo series$235
Full specifications
Case
3 specsDiameter
40mm
38mm
Thickness
6.6mm
8.2mm
Water Resistance
50m
100m
Crystal & Dial
2 specsCrystal
Sapphire
Mineral
Dial Color
—
Cream
Movement
1 specsCaliber
Miyota
Ronda 505.24
Pricing
1 specsMSRP
$179
—
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