Seiko Cal. 5660 - 821

This Spring Drive model from 1980 features a 39mm Titanium case. It features a Burgundy dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-f666b6298ae5]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

15.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Burgundy

Jewels

28j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1980

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