Seiko Cal. 6650 - 747

The Seiko 6650-747 represents an important milestone in Seiko's 1977 lineup. With its 19mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-778cb7b3bfe4]

Also known as: Sumo, Arnie

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

39mm

Case Thickness

11.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Navy

Jewels

31j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1977

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