Seiko Cal. 6317 - 987

Seiko 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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