Seiko Cal. 3864 - 860

The 3864-860 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3864 caliber with 25j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-2b60a7abe9b2]

Also known as: Shogun, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

10.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

White

Jewels

25j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1988

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