Seiko Cal. 3864 - 881

The Seiko 3864-881 represents an important milestone in Seiko's 1970 lineup. Powered by the 3864 caliber with 22j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-78d1664f4b29]

Also known as: Monster

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

39mm

Case Thickness

12.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Silver

Jewels

22j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1970

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