There is so much to tell about this pocket watch. Firstly its a presentation pocket watch engraved 1936 & presented by THE FIRST NATIONAL BANK OF CHICAGO to OTTO F HASS for 25 years service. Secondly its exceedingly rare pocket watch as only 6,300 were produced of this model during 1927 making it highly collectable. Waltham 1927, Grade Maximus A, Model L-10, 10l, 23J, stem set, 5 adjustments, slim line with date serial number 26296233. Working and was tested over a 19 hour period and lost approx 2 minutes, will need a service to keep perfect time. The 14k gold case is 44mm in diameter and has an overall weight of 42.6 grams. Dial has some minor wear, case back has some scratches.