Seiko Cal. 5660 - 636

This Spring Drive model from 1984 features a 44mm Two-Tone case. It features a Cream dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-cb988a246421]

Also known as: Sea Horse, Crown

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

8.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Cream

Jewels

23j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1984

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