Seiko Cal. 3864 - 987

This Spring Drive model from 1965 features a 39mm PVD Black case. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-103269830b0a]

Also known as: Shogun, Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

15.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Green

Jewels

36j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1965

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