Seiko Cal. 6657 - 897

The Seiko 6657-897 represents an important milestone in Seiko's 1971 lineup. Powered by the 6657 caliber with 33j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-c6aa04104dec]

Also known as: Flighty

Specifications

Movement

Solar

Case Material

Titanium

Case Width

38mm

Case Thickness

13.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Cream

Jewels

33j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1971

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