Seiko Cal. 6646 - 529

The 6646-529 is a sought-after Kinetic piece from Seiko's golden era. The Inner Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-a6f4ba5bbf16]

Also known as: Sumo, World Timer

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

8.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Cream

Jewels

35j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1971

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