Seiko Cal. 3864 - 807

The 3864-807 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3864 caliber with 17j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-af29134f4071]

Also known as: Tuna, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

12.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Black

Jewels

17j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1974

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