watchmaker Posted June 30, 2009 Report Share Posted June 30, 2009 Hi people, new here Anyone know where to get a winding stem that fits a genuine or rep big brevet rolex crown? Regular 1030 winding stems from cousins uk seem to be too thin... Quote Link to comment Share on other sites More sharing options...
watchmaker Posted June 30, 2009 Author Report Share Posted June 30, 2009 Nobody ever worked on a big crown rolex? Quote Link to comment Share on other sites More sharing options...
alligoat Posted June 30, 2009 Report Share Posted June 30, 2009 So is a standard stem for a 1030 a tap 10/.9mm? Sounds like you'd need to go to the next larger size and I wonder if even Rolex would have one- maybe in Geneva... This stuff is like ancient- 50 years old! freddy333 might be the one to ask. Also, the Daytona book has some good technical info, I'll look in that tonite. "Daytona, a legend is born" covers the Daytona from the 6238 thru the 6365 and the 16520- pretty good stuff- unfortunately it's out of print now. Quote Link to comment Share on other sites More sharing options...
freddy333 Posted June 30, 2009 Report Share Posted June 30, 2009 There are 2 stems indicated for the 1030 class of calibres - a 0.90mm thread stem (part 6946) & a 1.10mm thread stem (part 6947). Quote Link to comment Share on other sites More sharing options...
alligoat Posted July 1, 2009 Report Share Posted July 1, 2009 10-4! 'Rolex Daytona, a legend is born' shows the Brevet crown as part No. 22, 8mm (twinlock) with 1.1mm threads. Later the number was changed to 800. Case tube is PN 207, later referred to as 800 also. Quote Link to comment Share on other sites More sharing options...
watchmaker Posted July 1, 2009 Author Report Share Posted July 1, 2009 Thanks for the excellent info, and I need to get me that daytona book as well, looks pretty good Quote Link to comment Share on other sites More sharing options...
Marble Posted July 1, 2009 Report Share Posted July 1, 2009 You could use a 6946 stem + you buy a Stem Extension Tap 9 to Tap 12, perfect match and very cheap. Quote Link to comment Share on other sites More sharing options...
watchmaker Posted July 2, 2009 Author Report Share Posted July 2, 2009 You could use a 6946 stem + you buy a Stem Extension Tap 9 to Tap 12, perfect match and very cheap. Great thanks, I assume better to go with extension tap 12 for a worn out crown and tap 11 for a NOS crown/Rep right? Or maybe margins are so small it doesn't matter Quote Link to comment Share on other sites More sharing options...
Marble Posted July 2, 2009 Report Share Posted July 2, 2009 Great thanks, I assume better to go with extension tap 12 for a worn out crown and tap 11 for a NOS crown/Rep right? Or maybe margins are so small it doesn't matter 11 was to small for a new rep one so I ordered a 12. Quote Link to comment Share on other sites More sharing options...
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