Seiko Cal. 6631 - 989

The Seiko 6631-989 represents an important milestone in Seiko's 1982 lineup. Powered by the 6631 caliber with 26j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-0d7b28deff99]

Also known as: Turtle

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Cream

Jewels

26j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1982

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