5 3/4 x 7 1/2”’ | Hand Wind | Swiss Lever | No Seconds

• Listing ID: 17912
• Manufacturer / Brand: Gruen
• Caliber: 285 Curvex
• Size in French Lignes: 5 3/4 x 7 1/2'''
• Size range mm largest diameter: 0 - 22 mm
• Shape: Form
• Winding: Manual (Crown)
• Hands Setting: Crown
• Seconds Hand: None
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Jewels: 17
• Setting Lever Screw/Pin Position: Right
• Balance Position: Right (0 - 120°)
• Holes in setting lever spring or rocking bar: 3
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Monometallic screw balance with Breguet hairspring
• Power Reserve: Unknown
• Production Period: 1948+
• Country: Switzerland
• Identification: Movement marked with GRUEN on the wheel train bridge, and with CURVEX and 285 on the barrel bridge.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)