Seiko Cal. 3817 - 513

The Seiko 3817-513 represents an important milestone in Seiko's 1975 lineup. Powered by the 3817 caliber with 36j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-5d9569ebc92d]

Also known as: Panda, Sea Horse

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

12.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Black

Jewels

36j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1975

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