Seiko Cal. 6635 - 733

The Seiko 6635-733 represents an important milestone in Seiko's 1966 lineup. With its 20mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-4a1739b044bf]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Green

Jewels

20j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1966

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