Seiko Cal. 5660 - 776

This Quartz model from 1969 features a 37mm Hardlex-Coated Steel case. Powered by the 5660 caliber with 19j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-02e33a95a644]

Also known as: Bullhead, Bellmatic

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

19j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1969

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