Seiko Cal. 0764 - 791

Released in 1978, the Cal. 0764 with design code 791 was part of Seiko's domestic market collection. Powered by the 0764 caliber with 21j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-308fc2df1eaf]

Also known as: Tuna, UFO

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

10.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

White

Jewels

21j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1978

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