Seiko Cal. 5660 - 658

This Hand-Winding model from 1983 features a 38mm Hardlex-Coated Steel case. It features a Navy dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-0a399f8df70b]

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

9.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

32j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1983

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