Seiko Cal. 6363 - 870

This Spring Drive model from 1971 features a 40mm Two-Tone case. With its 21mm lug width and 11.2mm profile, it sits comfortably on most wrists. [seikata-wm-6fded1079e2c]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

150m

Dial Color

Green

Jewels

35j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1971

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