Seiko Cal. 3864 - 323

The Seiko 3864-323 represents an important milestone in Seiko's 1966 lineup. Powered by the 3864 caliber with 20j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-fbe053520516]

Also known as: Tuna, Navigator

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

10.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Black

Jewels

20j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1966

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