Seiko Cal. 5660 - 425

This Spring Drive model from 1983 features a 42mm Hardlex-Coated Steel case. It features a Green dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-1106ab11206f]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Green

Jewels

23j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1983

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