Nichols Speedometer in Greensboro, NC repaired mine in 2008.  The invoice date was 6/12 (perhaps the date they received it) and shipped back on 7/1.  However, it was not converted to quartz since it was repairable.  Cost then was $122.70 and $11.38 shipping. It kept good time for many years, but the last couple it loses about 2 minutes in 8 hours.  The battery is only connected when it's out of the garage so it's no issue for me.
				
			