Seiko Cal. 0764 - 428

The Seiko 0764-428 represents an important milestone in Seiko's 1972 lineup. Powered by the 0764 caliber with 30j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-323266d722a3]

Also known as: Navigator, Emperor

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

40mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

White

Jewels

30j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1972

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