Seiko Cal. 3890 - 683

The Seiko 3890-683 represents an important milestone in Seiko's 1976 lineup. Powered by the 3890 caliber with 32j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-1e9d250b19b5]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Cream

Jewels

32j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1976

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