Seiko Cal. 6620 - 910

The Seiko 6620-910 represents an important milestone in Seiko's 1968 lineup. The Inner Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-e30e6079d513]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

14.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Black

Jewels

31j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1968

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