Seiko Cal. 0764 - 431

The Seiko 0764-431 represents an important milestone in Seiko's 1967 lineup. Powered by the 0764 caliber with 36j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-e37392d06a75]

Also known as: Bullhead, UFO

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

11.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

White

Jewels

36j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1967

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