8 3/4”’ | Hand Wind | Swiss Lever | No Seconds

• Listing ID: 18439
• Manufacturer / Brand: Straub / Perla / Alpina
• Caliber: Alpina 1170 = Straub / Perla Model No. 48
• Size in French Lignes: 8 3/4'''
• Size range mm largest diameter: 0 - 22 mm
• Shape: Round
• Winding: Manual (Crown)
• Hands Setting: Crown
• Seconds Hand: None
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Jewels: 15
• Setting Lever Screw/Pin Position: Right
• Balance Position: Bottom (120 - 240°)
• Holes in setting lever spring or rocking bar: 3
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Bimetallic screw balance
• Power Reserve: Unknown
• Production Period: Unknown, probably around 1920
• Country: Switzerland
• Identification: Movement marked with Alpina and 1170. Registered by Straub/Perla in the Swiss Official Gazette of Commerce on 01.06.1920 as Model No. 48. Model No. 48 is not an official caliber designation, but was used to register the design.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)