Rare 16s watch. 〈 Watch 〉 Weight: Approximately 92.62g Length: Approximately 5.1cm Runs for 18 hours after winding the crown 10 times. 〈 Chain 〉 Weight: Approximately 17.48g Length: Approximately 37cm Waltham Riverside model. 1908 Serial No. "17070368" Made in 1908 According to the serial number verification site, the earliest owner information found was "17070156" and the second was "17070398," so this watch is considered to be from a very early production run. ※ Referenced from pocket watch database The reference daily rate was within ±20 seconds in all positions (verified with a Watch Accuracy Meter, crown wound 10 times). ※ The daily rate when running for a day was not in minutes. This is an amateur measurement using an app, so it is not guaranteed, but provided for reference. The dial is double-sunk, and the back is entirely green, which is unusual. Notes: ※ Oil has been applied to the jewel bearings during inspection (Citizen AO-3). ※ There are some lines on the dial. ※ The crystal seems to come off easily. ※ The screw on the cannon pinion has been replaced during previous maintenance. ※ When winding the mainspring, pressing the crown slightly makes it wind smoothly. There is no rust, but as this is a watch from nearly 120 years ago, there may be undiscovered defects. Everything in the photos is included. Please understand that after-sales support will be handled accordingly for those seeking perfection. Please feel free to ask any questions in the comments.