Seiko Cal. 3851 - 713

The Seiko 3851-713 represents an important milestone in Seiko's 1970 lineup. Powered by the 3851 caliber with 20j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-83f041392ec7]

Also known as: Shogun, World Timer

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

41mm

Case Thickness

15.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1970

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