Seiko Cal. 3820 - 186

The Seiko 3820-186 represents an important milestone in Seiko's 1977 lineup. Powered by the 3820 caliber with 32j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-bb7de68872f0]

Also known as: Silverwave, Emperor

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

34mm

Case Thickness

13.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Navy

Jewels

32j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1977

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