Seiko Cal. 0763 - 365

This Hand-Winding model from 1981 features a 40mm Stainless Steel case. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-faa09b82cad2]

Also known as: Helmet, Flighty

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

10.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1981

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