Seiko Cal. 3890 - 722

This Automatic model from 1973 features a 45mm Titanium case. Powered by the 3890 caliber with 19j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-87807a96cfab]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Cream

Jewels

19j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1973

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