Seiko Cal. 3890 - 541

This Hand-Winding model from 1969 features a 37mm PVD Black case. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-f4365e47173e]

Also known as: UFO, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Burgundy

Jewels

33j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1969

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