Seiko Cal. 6321 - 639

The 6321-639 is a sought-after Spring Drive piece from Seiko's golden era. With its 20mm lug width and 10.6mm profile, it sits comfortably on most wrists. [seikata-wm-fa8052fc3ccd]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

10.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Burgundy

Jewels

32j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1988

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