Seiko Cal. 5656 - 958

This Quartz model from 1975 features a 45mm Hardlex-Coated Steel case. With its 20mm lug width and 9.9mm profile, it sits comfortably on most wrists. [seikata-wm-e845a6e55cad]

Also known as: Tuna, Navigator

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

9.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Black

Jewels

18j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1975

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