Seiko Cal. 6630 - 278

The 6630-278 is a sought-after Spring Drive piece from Seiko's golden era. The Fixed bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-89d47aaee938]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

13.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

200m

Dial Color

Silver

Jewels

17j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1979

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