Seiko Cal. 6631 - 662

The Seiko 6631-662 represents an important milestone in Seiko's 1982 lineup. Powered by the 6631 caliber with 32j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-8c7b6e75bc9b]

Also known as: Flighty

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

13.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Cream

Jewels

32j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1982

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