Hi! My name is XXXXX XXXXX it is my pleasure to assist you. This should be an Elgin 1891model. I posted pictures of a similar watch below. Fahys Monarch #1 The number 543978 is the cases serial number if you are able to open the back of the watch to expose the inner workings there should be a serial number of the movement that will allow me to date your watch. The back should either unscrew or pry off. Also I need to know if it says 10K, or 14K for solid gold or if it reads gold filled or rolled gold the case may also read 10 or 20 year case. I also need to know what condition the watch is in plus is it running? With this information I will be able to give you an accurate age and value of your watch. Thanks Mike

This is just an example of what the inner workings looks like with the serial number and number of jewels.

ELGIN 1891 FAHYS MONARCH NO 1 POCKET WATCH

INSIDE THE OUTER DOOR IS ENGRAVED FAHYS MONARCH NO1 538496. INSIDE THE 2ND DOOR THE SERIAL NUMBER IS XXXXX ENGRAVED 538496. THE WATCH MECHANISM INSIDE IS ENGRAVED ELGIN NATL WATCH CO AND SERIAL NUMBERED(NNN) NNN-NNNN ALSO SAYS SAFETY PINION ON WATCH MECHANISM. THE EDGE OF THE CASE IS ALSO ENGRAVED WITH THE SERIAL NUMBER 538496 JUST LIKE INSIDE THE BACK 2 DOORS.

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