A gentleman's pocket watch with sprung cover in fine Tula Niello technique, 3 covers silver 800/000, circa 1910, case marked Holy Freres St.-Imier Switzerland, engraved cartouche with monogram ''PM'' on the front, silvered dial with black Arabic numerals and gilt lance hands, small second at 6 o'clock, movement with lever escapement and bi-metal balance, running, case with only minimal signs of wear, diameter 53mm, height 11mm, total weight approx. 82.5g