Seiko Cal. 6650 - 763

The Seiko 6650-763 represents an important milestone in Seiko's 1978 lineup. The Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-8792ce30f81a]

Also known as: Tuna, Panda

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

11.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

190m

Dial Color

Green

Jewels

31j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1978

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