Seiko Cal. 6662 - 725

The Seiko 6662-725 represents an important milestone in Seiko's 1975 lineup. Powered by the 6662 caliber with 35j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-a2a278e46f2f]

Also known as: Sumo, Silverwave

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

8.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Cream

Jewels

35j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1975

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