Seiko Cal. 0764 - 777

The Seiko 0764-777 represents an important milestone in Seiko's 1988 lineup. Powered by the 0764 caliber with 20j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-0c301c3b4764]

Also known as: Sumo, Panda

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

35mm

Case Thickness

11.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Green

Jewels

20j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1988

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