Side by side
Castor Watches KOI DARKvsLum-Tec B68 Day Date
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
KOI DARK38mm
B68 Day Date44mm
Power Reserve
KOI DARK—
B68 Day Date40h
Water Resistance
KOI DARK50m
B68 Day Date200m
MSRP
KOI DARK—
B68 Day Date$595
Full specifications
Case
7 specsCategory
—
Sport
Diameter
38mm
44mm
Thickness
7mm
—
Lug-to-Lug
—
51.5mm
Lug Width
18mm
22mm
Material
316L Stainless Steel
316L Stainless Steel (DLC coated)
Water Resistance
50m
200m
Crystal & Dial
2 specsCrystal
Mineral
Domed Sapphire
Dial Color
Copper
B68 Day Date
Movement
2 specsCaliber
Miyota 2035
Ronda 515
Power Reserve
—
40h
Pricing
1 specsMSRP
—
$595
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