Seiko Cal. 6313 - 787

The Seiko 6313-787 represents an important milestone in Seiko's 1971 lineup. Powered by the 6313 caliber with 28j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-53f134d5c166]

Also known as: Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1971

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