Seiko Cal. 6317 - 987

The 6317-987 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6317 caliber with 20j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-1bef614ab6ae]

Also known as: Tuna, Bellmatic

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

130m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1984

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