Seiko Cal. 6631 - 835

Released in 1979, the Cal. 6631 with design code 835 was part of Seiko's domestic market collection. The Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-5b92be0dae36]

Also known as: Helmet, Emperor

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

42mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1979

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