Seiko Cal. 7131 - 442

This Hand-Winding model from 1967 features a 40mm Gold-Plated case. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-6d2a239b8c9c]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

10.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1967

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