Seiko Cal. 0781 - 731

This Kinetic model from 1971 features a 35mm Stainless Steel case. With its 21mm lug width and 15.8mm profile, it sits comfortably on most wrists. [seikata-wm-0535db3abb73]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

15.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Black

Jewels

25j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1971

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