Good morning OFers, I picked this up a couple of weeks ago & it arrived yesterday. Crystal is cracked @ 11 and the lume has dropped off the hour hand. I removed the flaking lume off the dial with a blower last night & removed the crystal to measure it. Best readings i got were 30.1 to 30.2mm. this one needs a service, but i'd like to source a new crystal first. The reference isn't common & there's not much info to be found online. I've already checked through Jules Borel, Ofrei, ST, Cousins, scotchwatch, ebay, OF & found no part references for the crystal. i'd appreciate any leads or the part number/exact measurement so i can find one. Thank you for the help, here are the seller's pics, i will try to take some this weekend if the missus hasn't already planned my schedule. The crystal is heavily scored & marked, dial has patina but lumed numbers are fully intact & not warped at all. Stepped lugs, hour hand is pointing to 12. Case is unpolished & just over 35mm without the unsigned crown.