Seiko Cal. 0764 - 577

The Seiko 0764-577 represents an important milestone in Seiko's 1983 lineup. Powered by the 0764 caliber with 21j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-772aeea9f95e]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

10.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Cream

Jewels

21j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1983

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