Seiko Cal. 6645 - 662

The 6645-662 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6645 caliber with 32j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-2a716aa43d74]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

14.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

32j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1988

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