Seiko Cal. 6631 - 129

The Seiko 6631-129 represents an important milestone in Seiko's 1985 lineup. The Bidirectional bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-604586ad100e]

Also known as: Crown, Arnie

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

8.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Black

Jewels

23j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1985

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