Seiko Cal. 6631 - 783

The Seiko 6631-783 represents an important milestone in Seiko's 1965 lineup. With its 19mm lug width and 13.3mm profile, it sits comfortably on most wrists. [seikata-wm-2adc860065b6]

Also known as: Emperor

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

13.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1965

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