18 size (= 20 1/4”’) | Key Wind | Swiss Lever | Small Seconds |

Remarks:

• Pillar construction

• Listing ID: 11579
• Manufacturer / Brand: Waltham
• Caliber: Model 1883 Grade A.W.Co.
• Size in French Lignes: 18 size (= 20 1/4''')
• Size range mm largest diameter: > 40 mm
• Shape: Round
• Winding: Manual (Key)
• Hands Setting: Key
• Seconds Hand: Small seconds
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Jewels: 7
• Setting Lever Screw/Pin Position: None (Key Winding)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Bimetallic screw balance with Breguet hairspring
• Power Reserve: Unknown
• Production Period: 1896 - 1900 (29,000 pieces)
• Identification: According to the serial number in this database: https://pocketwatchdatabase.com/search/result/waltham/8709854
• Country: U. S. A.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)