Seiko Cal. 6657 - 898

The Seiko 6657-898 represents an important milestone in Seiko's 1986 lineup. Powered by the 6657 caliber with 36j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-dea5a754d9d5]

Also known as: Monster

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

45mm

Case Thickness

15.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Burgundy

Jewels

36j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1986

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