Seiko Cal. 0764 - 613

The 0764-613 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0764 caliber with 31j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-4dbe34b11ecc]

Also known as: Silverwave, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

11.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1991

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