Seiko Cal. 6631 - 408

The 6631-408 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6631 caliber with 30j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-601c3149cf13]

Also known as: Shogun, Panda

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

38mm

Case Thickness

12.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1981

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