Hello, this is a silver and gold watch. It tests positive for 18k when you do an acid test but when you open it; .800 silver.
It works great.
The hallmark on the bow is “aigle sanglier’ .
Thanks for reading, regards, Pierre
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“Robur in argor” refers primarily to vintage mechanical pocket watches from the Robur Suisse brand, often set in cases made of “argor” (a type of silver or silver-plated material, sometimes designated as .800 silver). These are collectible timepieces, often from the first half of the 20th century, often featuring chronometer functions.
Argor-Heraeus is a renowned Swiss refinery established in 1951, specializing in producing high-quality precious metal bars (gold, silver, platinum, palladium). The name “Argor” is a contraction derived from the French words Argent (silver) and Or (gold).
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