21”’ | Hand Wind | English Lever | Direct Sweeping Seconds |

Remarks:

• Hacking center seconds

• Listing ID: 20976
• Manufacturer / Brand: Hammon & Son
• Caliber: Chronometer 21'''
• Size in French Lignes: 21'''
• Size range mm largest diameter: > 40 mm
• Shape: Round
• Winding: Manual (Crown)
• Hands Setting: Crown with pin/pusher
• Seconds Hand: Sweeping seconds (central seconds)
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Jewels: 15
• Balance Position: Bottom (120 - 240°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Bimetallic screw balance with Breguet hairspring
• Power Reserve: Unknown
• Production Period: Unknown, maybe around 1880
• Country: United Kingdom
• Identification: Movement with Hammon & Son and with Chronometer Makers London.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)