Try this one: on the right hand side you can order from their website or ebay site. Pretty sure the part number is R3035

https://www.clocksandgauges.com/quartz-conversion-kit.html

or this place

http://www.whitegauges.net/products/Quartz-Conversion-Clock-Repair-Kit-
R%252d3035.html

https://www.ebay.com/itm/Quartz-Conversi...=item3ae8367ed4