Seiko Cal. 6646 - 563

This Quartz model from 1973 features a 41mm Stainless Steel case. With its 18mm lug width and 8.5mm profile, it sits comfortably on most wrists. [seikata-wm-fcc73e617c61]

Also known as: Sea Horse, Arnie

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

8.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Silver

Jewels

30j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1973

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