Seiko Cal. 6631 - 886

The Seiko 6631-886 represents an important milestone in Seiko's 1976 lineup. Powered by the 6631 caliber with 25j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-3c76d5425762]

Also known as: Arnie

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

8.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Champagne

Jewels

25j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1976

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