Seiko Cal. 7031 - 997

This Spring Drive model from 1967 features a 38mm Stainless Steel case. With its 22mm lug width and 14.6mm profile, it sits comfortably on most wrists. [seikata-wm-b1897c6a2c05]

Also known as: Bullhead, UFO

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

14.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

29j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1967

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