Seiko Cal. 6643 - 580

The 6643-580 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6643 caliber with 19j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-e760a4c5ec41]

Also known as: Silverwave

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Navy

Jewels

19j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1968

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