Side by side

Castor Watches KOI DARKvsSeiko Essentials Quartz (Ladies)

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

KOI DARK
Castor WatchesKOI DARK
Essentials Quartz (Ladies)
SeikoEssentials Quartz (Ladies)
MSRP $350

At a glance

11 of 29 specs differ
Diameter
KOI DARK38mm
Essentials Quartz (Ladies)30mm
Power Reserve
KOI DARK
Essentials Quartz (Ladies)40h
Water Resistance
KOI DARK50m
Essentials Quartz (Ladies)50m
MSRP
KOI DARK
Essentials Quartz (Ladies)$350

Full specifications

Case

6 specs
Category
Dress
Diameter
38mm
30mm
Thickness
7mm
7mm
Lug-to-Lug
39.5mm
Lug Width
18mm
8mm
Material
316L Stainless Steel
Stainless Steel

Crystal & Dial

2 specs
Crystal
Mineral
Hardlex
Dial Color
Copper
Black

Movement

2 specs
Caliber
Miyota 2035
6N01
Power Reserve
40h

Pricing

1 specs
MSRP
$350
Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Follow this matchup

Get a note when Castor Watches KOI DARK vs Seiko Essentials Quartz (Ladies) gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.