Seiko Cal. 6636 - 359

Released in 1973, the Cal. 6636 with design code 359 was part of Seiko's domestic market collection. The Fixed bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-6752ddc3cf08]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

13.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

120m

Dial Color

Champagne

Jewels

33j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1973

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