Seiko Cal. 6164 - 331

The Seiko 6164-331 represents an important milestone in Seiko's 1973 lineup. Powered by the 6164 caliber with 34j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-e889d8df4de3]

Also known as: Bellmatic, Flighty

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Silver

Jewels

34j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1973

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