Seiko Cal. 0769 - 640

The Seiko 0769-640 represents an important milestone in Seiko's 1970 lineup. It features a Silver dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-5bd11bb953eb]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

35mm

Case Thickness

14.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

90m

Dial Color

Silver

Jewels

33j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1970

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