8 3/4”’ | Hand Wind | Swiss Lever | Small Seconds |

Remarks:

• UROFA 52: without setting lever spring
• UROFA 521: with setting lever spring, dial side marked with UROFA 521
• UROFA 522: with setting lever spring, dial side marked with UROFA 522, manufactured with a new tool set and new technology for pressing in the jewels

• Listing ID: 6939
• Manufacturer / Brand: UROFA
• Caliber: 52
• 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: Small seconds
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Jewels: 7, 15, 16
• Setting Lever Screw/Pin Position: Left
• Balance Position: Bottom (120 - 240°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Monometallic screw balance made of German silver
• Power Reserve: Approx. 35 hours
• Production Period: 1929 - 1932
• Country: Germany
• Identification: Listed in the Flume K1 catalog in the part from 1947.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)
• External Link 2: https://www.glashuetteuhren.de/kaliberuebersichten-modelle/uhren-rohwerkefabrik-ag-glashuette-urofa/