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Castor Watches KOI DARKvsFortis Flieger F-41

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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KOI DARK
Castor WatchesKOI DARK
Flieger F-41
FortisFlieger F-41
MSRP $2,530
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Buy from Fortis ↗
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At a glance

14 of 29 specs differ
Diameter
KOI DARK38mm
Flieger F-4141mm
Power Reserve
KOI DARK—
Flieger F-4138h
Water Resistance
KOI DARK50m
Flieger F-41200m
MSRP
KOI DARK—
Flieger F-41$2,530

Full specifications

Case

7 specs
Category
—
Tool
Diameter
38mm
41mm
Thickness
7mm
11.5mm
Lug-to-Lug
—
46mm
Lug Width
18mm
20mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
50m
200m

Crystal & Dial

2 specs
Crystal
Mineral
Sapphire
Dial Color
Copper
Black

Movement

4 specs
Caliber
Miyota 2035
Sellita SW200-1
Type
Quartz
Automatic
Power Reserve
—
38h
Jewels
25
26

Pricing

1 specs
MSRP
—
$2,530
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