19”’ | Hand Wind | Swiss Lever | Small Seconds

• Listing ID: 20252
• Manufacturer / Brand: Berna
• Caliber: Model No. 4
• Size in French Lignes: 19'''
• Size range mm largest diameter: > 40 mm
• Shape: Round
• Winding: Manual (Crown)
• Hands Setting: Crown
• Seconds Hand: Small seconds
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Jewels: 16
• Setting Lever Screw/Pin Position: Left
• Balance Position: Left (240 - 360°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Bimetallic screw balance with Breguet hairspring
• Power Reserve: Unknown
• Production Period: Unknown, probably around 1911
• Country: Switzerland
• Identification: Registered by Berna Watch on 07.07.1911 in the Swiss Official Gazette of Commerce as model no. 4. Model No. 4 is not an official caliber designation, but was used to register the design.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)