Side by side
Castor Watches KOI DARKvsMarathon Steel Navigator SSNAV Auto
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
Steel Navigator SSNAV Auto41mm
Power Reserve
KOI DARK—
Steel Navigator SSNAV Auto40h
Water Resistance
KOI DARK50m
Steel Navigator SSNAV Auto60m
MSRP
KOI DARK—
Steel Navigator SSNAV Auto$1,300
Full specifications
Case
6 specsCategory
—
Pilot
Diameter
38mm
41mm
Thickness
7mm
11.5mm
Lug-to-Lug
—
48mm
Lug Width
18mm
20mm
Water Resistance
50m
60m
Crystal & Dial
2 specsCrystal
Mineral
Sapphire
Dial Color
Copper
Black
Movement
3 specsCaliber
Miyota 2035
Sellita SW200-1
Type
Quartz
Automatic
Power Reserve
—
40h
Pricing
1 specsMSRP
—
$1,300
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