Seiko Cal. 6636 - 103

The Seiko 6636-103 represents an important milestone in Seiko's 1967 lineup. With its 20mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-0f6c3a1de6ec]

Also known as: Emperor

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

44mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

31j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1967

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