Seiko Cal. 6647 - 762

The 6647-762 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6647 caliber with 32j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-aa1c728e0a3c]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

12.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

White

Jewels

32j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1998

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