Seiko Cal. 6630 - 924

The Seiko 6630-924 represents an important milestone in Seiko's 1969 lineup. The Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-6c5a80a79ed1]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

11.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

150m

Dial Color

Green

Jewels

36j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1969

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