细节
AN ART DÉCO MULTI-GEM BRACELET-WATCH, BY OSTERTAG
The small rectangular dial with Arabic numerals and blued steel hands within a diamond and emerald bezel, to the carved ruby, sapphire and emerald, old-cut diamond and yellow diamond bracelet of foliate design, mechanical movement, 1930s, 17.3 cm, with French assay marks for platinum
Illegible signature
Please note that the yellow diamonds have not been tested for natural colour origin.