1920s Wegelin Fils Geneve Platinum Slim Mens 43mm Pocket Watch. The silver dial with black numerals, outer minute tracking, sub seconds at 6 with matching blue steel hands is signed Wegelin Fils geneve. The high grade manual wind jewelled to the centre lever movement is working, fully signed Wegelin Fils Geneve. The platinum 43mm double back case is in nice condition, decorated with a monogramed disk to back, case is signed Platine with hallmarks, number matches movement. total weight 46.6 grams. The Wegelin jewellery and watch shop was opened in 1911 on Rue de Bonne 12 in Grenoble. The sons of the company founder Arnold and Henri took over the business. Henri Wegelin founded a jewellery workshop in Lyon in 1920. Shortly afterwards, a watch shop was opened in Geneva.