Seiko Cal. 6630 - 813

Released in 1984, the Cal. 6630 with design code 813 was part of Seiko's domestic market collection. The Fixed bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-530dfe211cd3]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

13.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1984

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