Seiko Cal. 5663 - 816

This Hand-Winding model from 1978 features a 44mm Gold-Plated case. It features a Black dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-7b545d7af8d6]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Black

Jewels

33j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1978

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