Seiko Cal. 6315 - 317

The 6315-317 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6315 caliber with 18j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-bd2fdae6f0f4]

Also known as: Bullhead, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

9.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

100m

Dial Color

Silver

Jewels

18j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1975

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