Seiko Cal. 6620 - 218

This Spring Drive model from 1980 features a 46mm Two-Tone case. With its 18mm lug width and 14.2mm profile, it sits comfortably on most wrists. [seikata-wm-682dd3eb25bc]

Also known as: Bellmatic, Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Silver

Jewels

29j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1980

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