Eterna Sonic

A magnificent example of this Eterna Sonic, a rare reference in this configuration.
In exceptional condition for its time, the model dates from the 1970s.

Tuning fork movement: Caliber 1550 (ESA 9162)
Movement functioning perfectly, checked and tested.

Case dimensions: 34.5mm (excluding crown) / 36.5mm (including crown)

Gold-plated case.
Screw-on stainless steel case back.

Gold dial.
Gold and onyx baton index finger - double baton. Magnificent.
Gold and onyx baton needles.
Red second hand, contrasting with the dial.

New genuine black calfskin strap. Gold-plated pin buckle.

Magnificent example from the Eterna company, exceptional both aesthetically and mechanically.