Seiko Cal. 5666 - 680

This Automatic model from 1986 features a 39mm Hardlex-Coated Steel case. It features a Green dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-5d049f5f607c]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

60m

Dial Color

Green

Jewels

34j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1986

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