Seiko Cal. 6631 - 150

The Seiko 6631-150 represents an important milestone in Seiko's 1972 lineup. Powered by the 6631 caliber with 23j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-641169ed7264]

Also known as: Pogue

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

40mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1972

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