6 3/4 x 8”’ | Hand Wind | Swiss Lever | No Seconds |

Remarks:

• Movement family:
  • Gruen 224: 15 jewels, no seconds
  • Gruen 224SS: 15 jewels, sweeping seconds
  • Gruen 225: 17 jewels, no seconds
  • Gruen 225SS: 17 jewels, sweeping seconds
• Prefix N: white instead of blue hairpring
• Suffix R: with Incabloc shock protection

• Listing ID: 17945
• Manufacturer / Brand: Gruen
• Caliber: N225
• Size in French Lignes: 6 3/4 x 8'''
• 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
• Power Reserve: Unknown
• Production Period: Unknown
• Country: Switzerland
• Identification: Movement marked with Gruen and N225 on the wheel train bridge.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)