Seiko Cal. 5666 - 768

This Hand-Winding model from 1977 features a 37mm Hardlex-Coated Steel case. Powered by the 5666 caliber with 25j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-d2de782799eb]

Also known as: Silverwave

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Burgundy

Jewels

25j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1977

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