For offer is a 1920 (Model 1894) Waltham Grade 220 15 Jewel 12 Size Pocket Watch for Repair Gold Fill.  Movement looks good, but we do not know if it is functioning.  Minute hand is detached.  A great survivor for its age and can be a fun project.

FROM THE AMERICAN HOROLOGY ARCHIVE:
American Waltham Watch Co.

Grade: No. 220

Manufacturer:Waltham
Manufacturer Location:Waltham, Massachusetts
Movement Serial Number:23707219
Grade:No. 220
Model:1894
Estimated Production Year:1920
Run Quantity:10,000
Grade/Model Run:351 of 401
Grade/Model Total Production:817,280
Size:12s
Jewels:15j
Movement Configuration:Openface
Movement Finish:Nickel
Movement Setting:Pendant
Plate:3/4 Plate
Regulator:Patent
Hairspring:Breguet
Adjusted:No
Railroad Grade:No
Data Research:1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Case:Various
Run ID:24532.G351.12S1465.121894M1438.O15292.P9516.15J5771
Database Version:v52.270