Seiko Cal. 3897 - 656

The Seiko 3897-656 represents an important milestone in Seiko's 1972 lineup. Powered by the 3897 caliber with 33j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-c312587da91b]

Also known as: Flighty

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Champagne

Jewels

33j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1972

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