Seiko Cal. 3897 - 507

The Seiko 3897-507 represents an important milestone in Seiko's 1979 lineup. Powered by the 3897 caliber with 19j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-6bfe8dcc4def]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

36mm

Case Thickness

14.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

19j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1979

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