Seiko Cal. 3820 - 301

The Seiko 3820-301 represents an important milestone in Seiko's 1984 lineup. Powered by the 3820 caliber with 31j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-48bfde45061d]

Also known as: Tuna, Rally

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

44mm

Case Thickness

15.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

80m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1984

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