Original Swiss Wrist Watch with good movement, over 130 yrs Old

This watch was made for Marcel Georges Valère Céline Dubuisson (5 April 1903 - 25 October 1974) was a Belgian zoologist and professor at the University of Liège. Dubuisson was born in Olsene, which is part of Zulte, in 1903. World Watch maker is Patek Philippe Cie. The four reference numbers etched inside the back cover 36073, 33753, 31460 and 28093. How many watches are in this good of a condition over 130 yrs old. Full winding makes the watch run more than 30 hours. dial is porcelain, original, with reparation on "2" glass is perfect open case: argental, great size for use 51 mm. movement: gold plated, perfect, pin set 15 Jewels Produced: 1890 - 1900 Movement caliber : Made in Swiss Movement serial N/A Case N/A Movement size : 41 mm; Case size (without crown): 51 mm; Band 18 mm Man's size It appears to be original Patek Philippe parts and movement The watch has been fully serviced by eBay member theoldwatchmaker(13429) This means: every part is checked every part is cleaned every part is oiled the case is cleaned the watch has been tested for about a week ALL ORIGINAL ( case, dial, movement....) Swiss HI GRADE pocket watch converted to wristwatch before my time of ownership, in fantastic condition! The movement look like Patek Philippe. Fully serviced HI GRADE watch - still keep the time. If you are interested, take a look at my other items with no reserve!