Seiko Cal. 5256 - 971

This Quartz model from 1970 features a 45mm PVD Black case. With its 18mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-e27fed891318]

Also known as: Helmet, Emperor

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

45mm

Case Thickness

11.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Navy

Jewels

17j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1970

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