Seiko Cal. 6630 - 921

The 6630-921 is a sought-after Spring Drive piece from Seiko's golden era. With its 18mm lug width and 12.9mm profile, it sits comfortably on most wrists. [seikata-wm-ad5157abb7b7]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

12.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Green

Jewels

20j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1969

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