Seiko Cal. 6631 - 432

The Seiko 6631-432 represents an important milestone in Seiko's 1966 lineup. Powered by the 6631 caliber with 22j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-6fd577135eb0]

Also known as: Panda

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Champagne

Jewels

22j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1966

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