Seiko Cal. 6647 - 572

The Seiko 6647-572 represents an important milestone in Seiko's 1990 lineup. With its 22mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-63d8be90a0ab]

Also known as: Sumo, Rally

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

10.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

White

Jewels

19j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1990

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