Seiko Cal. 5646 - 322

The 5646-322 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5646 caliber with 19j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-24efbe959e47]

Also known as: Bullhead, Silverwave

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Black

Jewels

19j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1990

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