Seiko Cal. 6657 - 889

The Seiko 6657-889 represents an important milestone in Seiko's 1979 lineup. Powered by the 6657 caliber with 32j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-f8945535fa5f]

Also known as: Monster, Sea Horse

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

14.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

60m

Dial Color

Navy

Jewels

32j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1979

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