Seiko Cal. 6317 - 490

This Spring Drive model from 1969 features a 40mm Titanium case. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-cd20683fe58c]

Also known as: Sumo, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

8.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Silver

Jewels

25j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1969

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