Seiko Cal. 3831 - 343

The Seiko 3831-343 represents an important milestone in Seiko's 1967 lineup. Powered by the 3831 caliber with 30j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-00f3e309a92a]

Also known as: Tuna, Goldfeather

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

41mm

Case Thickness

13.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1967

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