Seiko Cal. 3890 - 312

This Automatic model from 1967 features a 36mm Titanium case. Powered by the 3890 caliber with 30j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-58ede04a5fac]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

13.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Burgundy

Jewels

30j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1967

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