Seiko Cal. 6659 - 907

The Seiko 6659-907 represents an important milestone in Seiko's 1973 lineup. Powered by the 6659 caliber with 17j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-2cc6757052ce]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

10.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Green

Jewels

17j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1973

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