Seiko Cal. 6317 - 770

The Seiko 6317-770 represents an important milestone in Seiko's 1968 lineup. Powered by the 6317 caliber with 34j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-1c50ccc5bdaa]

Also known as: Tuna, Crown

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

11.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

130m

Dial Color

Cream

Jewels

34j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1968

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