Seiko Cal. 0713 - 631

This Hand-Winding model from 1972 features a 41mm Titanium case. It features a Green dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-d987df4addae]

Also known as: Helmet, Flighty

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

41mm

Case Thickness

13.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

Green

Jewels

24j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1972

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