Seiko Cal. 6639 - 530

The 6639-530 is a sought-after Spring Drive piece from Seiko's golden era. With its 20mm lug width and 11.5mm profile, it sits comfortably on most wrists. [seikata-wm-18aa63ff5780]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

11.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Silver

Jewels

29j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1982

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