Seiko Cal. 5291 - 507

This Solar model from 1978 features a 44mm Gold-Plated case. With its 18mm lug width and 15.0mm profile, it sits comfortably on most wrists. [seikata-wm-ddb3e1bf92b8]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

15.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Green

Jewels

21j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1978

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