Side by side
ANGLES Watches The KOI-5vsSeiko 5 Sports Field series
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
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At a glance
13 of 29 specs differDiameter
The KOI-541mm
5 Sports Field series39.4mm
Power Reserve
The KOI-536h
5 Sports Field series41h
Water Resistance
The KOI-550m
5 Sports Field series100m
MSRP
The KOI-5$560
5 Sports Field series$315
Full specifications
Case
6 specsCategory
—
Sport
Diameter
41mm
39.4mm
Thickness
8.8mm
13.2mm
Lug-to-Lug
0mm
48.1mm
Material
Titanium
Stainless Steel
Water Resistance
50m
100m
Crystal & Dial
3 specsCrystal
Sapphire
Hardlex
Crystal Shape
—
Curved
Lume
None
LumiBrite on hands and index(es)
Movement
3 specsCaliber
Miyota 9039
Seiko 4R36
Power Reserve
36h
41h
Jewels
0
24
Pricing
1 specsMSRP
$560
$315
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