Seiko Cal. 3820 - 409

The Seiko 3820-409 represents an important milestone in Seiko's 1984 lineup. Powered by the 3820 caliber with 18j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-e6ed39e2fb5e]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

13.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

White

Jewels

18j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1984

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