Serial number on pocket watch database matches to following info (cannot guarantee it's accuracy, but I did use the serial number on the movement):
American Waltham
Watch
Co.
Grade: Wm. Ellery
Manufacturer:
Waltham
Manufacturer Location:
Waltham, Massachusetts
Movement Serial Number:
201419
Grade:
Wm. Ellery
Model:
1857
Estimated Production Date:
January 1866 - February 1866
Run Quantity:
1,100
Grade/Model Run:
211 of 958
Grade/Model Total Production:
201,307
Size:
18s
Jewels:
11j
Movement Configuration:
Adaptable
Movement Finish:
Gilt
Movement Setting:
Key
Wind Mechanism:
Key
Plate:
Full Plate
Balance Type:
Solid
Balance Material:
Steel
Adjusted:
No
Railroad Grade:
No
Case:
Various
Run ID:
3014.G278.18S2796.181857M2593.O3011.K3013.11J1681