Seiko Cal. 3831 - 228

The Seiko 3831-228 represents an important milestone in Seiko's 1975 lineup. Powered by the 3831 caliber with 17j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-9da24a6020a6]

Also known as: Baby Tuna

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

44mm

Case Thickness

14.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Burgundy

Jewels

17j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1975

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