Seiko Cal. 6630 - 433

This Spring Drive model from 1975 features a 36mm Two-Tone case. With its 22mm lug width and 11.1mm profile, it sits comfortably on most wrists. [seikata-wm-917e213f5332]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

11.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

30m

Dial Color

Black

Jewels

25j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1975

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