Seiko Cal. 4581 - 839

This Solar model from 1983 features a 37mm Stainless Steel case. With its 19mm lug width and 14.7mm profile, it sits comfortably on most wrists. [seikata-wm-4f5907833ac4]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

40m

Dial Color

Black

Jewels

36j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1983

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