Seiko Cal. 0764 - 978

The Seiko 0764-978 represents an important milestone in Seiko's 1968 lineup. With its 21mm lug width and 14.1mm profile, it sits comfortably on most wrists. [seikata-wm-8092bab7e4a6]

Also known as: Helmet, UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Navy

Jewels

21j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1968

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