Seiko Cal. 6390 - 371

This Spring Drive model from 1977 features a 41mm Stainless Steel case. With its 20mm lug width and 12.1mm profile, it sits comfortably on most wrists. [seikata-wm-e974da995ab1]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

12.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Burgundy

Jewels

26j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1977

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