Seiko Cal. 3820 - 447

This Spring Drive model from 1970 features a 46mm Hardlex-Coated Steel case. With its 20mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-3dbdf4250f79]

Also known as: Turtle

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

15.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1970

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