Seiko Cal. 0781 - 664

The Seiko 0781-664 represents an important milestone in Seiko's 1973 lineup. With its 21mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-a7587489ae6e]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Titanium

Case Width

41mm

Case Thickness

11.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

160m

Dial Color

White

Jewels

26j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1973

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