Seiko Cal. 6635 - 413

The Seiko 6635-413 represents an important milestone in Seiko's 1973 lineup. The Fixed bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-2ffc8bd6df01]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

13.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

130m

Dial Color

Cream

Jewels

24j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1973

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