Seiko Cal. 3820 - 687

The Seiko 3820-687 represents an important milestone in Seiko's 1977 lineup. It features a Burgundy dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-8312487f51ff]

Also known as: Flighty

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

12.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Burgundy

Jewels

29j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1977

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