HISTORICAL EMBLEMATIC TIMEPIECE BY OMEGA WATCH Co.
AN EXCELLENT ARTWORK BY MASTER GOLDSMITHERS FROM TOLEDO, Spain.
Remarks: 
PRODUCTION DATES: 1894-1911
Open face caliber, bimetallic screw balance, Breguet hairspring; option: Reed's regulator.
The redesign of this caliber, introduced 1911, was renamed to Omega 42.7 in 1919.
Swiss Patent 8760:
stem setting mechanism with clutch wheel and rocker bar, prevents moving of hands when 
switching to winding position, applied 08-01-1894 by Louis Brandt & Frère
MEASURES: 50mm diameter without crown or ring, 69mm high including standing ring.
GOLD FROM TOLEDO" artwork or "Damasquino" (DAMASCENE) RAMOLAYÉ PUNCED ORNAMENT is a kind of ancient ornament made with gold thread orplate on hardenedsteel or iron; it was used specially for decoring military weapons like swords, daggers and firearms.
In addition to its swords, Toledo is renowned for its damasquinados, or damascene handicrafts and costume jewelry. Damascening is the Moorish art of inlaying gold or silver threads into black steel in a decorative pattern. The skill was used to decorate plates, jewels and weapons.

The damascene procedure requires creativity and the steady hand of a surgeon on small pieces. Artisans first use sharp tools to scratch the pattern into the black steel. They then push the gold or silver threads into the grooves and use a hammer to make sure the threads stay in place.
The art of damascening has been around for centuries. The Egyptians, Greeks and Romans are known to have practiced it. Around the15th century, it grew in popularity in Europe and came to prominence in Toledo.
An old master artisan from Toledo told me several years ago: “The gold is gold. But the work is more important than the gold.”