Seiko Cal. 3897 - 400

The 3897-400 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3897 caliber with 26j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-c5a5d0c5fb12]

Also known as: Sea Horse, Flighty

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1977

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