Seiko Cal. 3820 - 665

The Seiko 3820-665 represents an important milestone in Seiko's 1981 lineup. With its 21mm lug width and 14.7mm profile, it sits comfortably on most wrists. [seikata-wm-54a2d4ecd4cf]

Also known as: Panda, Sportsmatic

Specifications

Movement

Solar

Case Material

Titanium

Case Width

46mm

Case Thickness

14.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

White

Jewels

18j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1981

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