Seiko Cal. 6643 - 154

The 6643-154 is a sought-after Solar piece from Seiko's golden era. Powered by the 6643 caliber with 36j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-d2928b341c36]

Also known as: Silverwave

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

45mm

Case Thickness

12.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

36j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1976

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