Seiko Cal. 6633 - 398

The 6633-398 is a sought-after Spring Drive piece from Seiko's golden era. The Inner Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-ed0d0f70bcbd]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

13.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

18j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1977

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