Longines - A Sterling silver trench style wristwatch, circa 1928, the signed circular white dial, 30mm diameter, with black Roman numerals (XII in red) blued moon hands, subsidiary seconds register at 6 o'clock and chemin de fer chapter ring, signed 15 jewel mechanical crown wind movement calibre 13,34, case 35mm diameter with milled bezel, verso screw down, plain and polished, interior numbered 5003129 with London import marks for Sterling silver and sponsor mark of Arthur Baume, hinged wire lugs to an aftermarket black leather strap with steel pin buckle