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Castor Watches KOI DARKvsSeiko Prospex Sea

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
Prospex Sea
SeikoProspex Sea
MSRP $795
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At a glance

14 of 29 specs differ
Diameter
KOI DARK38mm
Prospex Sea34mm
Power Reserve
KOI DARK—
Prospex Sea40h
Water Resistance
KOI DARK50m
Prospex Sea200m
MSRP
KOI DARK—
Prospex Sea$795

Full specifications

Case

7 specs
Category
—
Diver
Diameter
38mm
34mm
Thickness
7mm
8.7mm
Lug-to-Lug
—
40.8mm
Lug Width
18mm
16mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
50m
200m

Crystal & Dial

4 specs
Crystal
Mineral
Sapphire
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Copper
Black
Lume
None
LumiBrite on hands and index(es)

Movement

2 specs
Caliber
Miyota 2035
6N01
Power Reserve
—
40h

Pricing

1 specs
MSRP
—
$795
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