Side by side
Castor Watches KOI DARKvsDuckworth Prestex Chronograph 42 Quartz
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
KOI DARK38mm
Chronograph 42 Quartz42mm
Power Reserve
KOI DARK—
Chronograph 42 Quartz40h
Water Resistance
KOI DARK50m
Chronograph 42 Quartz100m
MSRP
KOI DARK—
Chronograph 42 Quartz$660
Full specifications
Case
6 specsDiameter
38mm
42mm
Thickness
7mm
13mm
Lug-to-Lug
—
48.5mm
Lug Width
18mm
20mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
50m
100m
Crystal & Dial
2 specsCrystal
Mineral
Sapphire
Dial Color
Copper
—
Movement
2 specsCaliber
Miyota 2035
Miyota 6S21
Power Reserve
—
40h
Pricing
1 specsMSRP
—
$660
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