Seiko Cal. 6634 - 443

The 6634-443 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6634 caliber with 30j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-6d22214ed344]

Also known as: Silverwave, Flighty

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

12.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

160m

Dial Color

Champagne

Jewels

30j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1965

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