Side by side
Castor Watches KOI DARKvsHemel HFC Mechanical Chronograph
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
HFC Mechanical Chronograph40mm
Power Reserve
KOI DARK—
HFC Mechanical Chronograph40h
Water Resistance
KOI DARK50m
HFC Mechanical Chronograph100m
MSRP
KOI DARK—
HFC Mechanical Chronograph$550
Full specifications
Case
6 specsCategory
—
Chronograph
Diameter
38mm
40mm
Thickness
7mm
13.4mm
Lug-to-Lug
—
47mm
Lug Width
18mm
20mm
Water Resistance
50m
100m
Crystal & Dial
2 specsCrystal
Mineral
Domed Sapphire
Dial Color
Copper
Airfoil (1970s British Pilot)
Movement
3 specsCaliber
Miyota 2035
Seagull ST19
Type
Quartz
Manual
Power Reserve
—
40h
Pricing
1 specsMSRP
—
$550
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