Seiko Cal. 6635 - 916

The 6635-916 is a sought-after Spring Drive piece from Seiko's golden era. With its 19mm lug width and 12.8mm profile, it sits comfortably on most wrists. [seikata-wm-41ae8300b5b2]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

12.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1975

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