Seiko Cal. 6631 - 998

The Seiko 6631-998 represents an important milestone in Seiko's 1987 lineup. The Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-d1828ad7c952]

Also known as: Panda, Sportsmatic

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1987

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