Lot 130 at Sotheby's July 14 seems to be a fake . . . we have seen these before, military style chronograph, with the "SAAF" [South African Air Force??] marking.

http://www.sothebys.com/en/catalogues/ecatalogue.html/2011/fine-watches-l11053#/r=/en/ecat.fhtml.L11053.html+r.m=/en/ecat.lot.L11053.html/130/

On the other hand, Lot 124 appears to be a nice looking AMI chronograph.

http://www.sothebys.com/en/catalogues/ecatalogue.html/2011/fine-watches-l11053#/r=/en/ecat.fhtml.L11053.html+r.m=/en/ecat.lot.L11053.html/124/

As you might expect (??), both these watches have the same estimate, of 2,000 to 3,000 GPB.

Thanks to Eric, of Hodinkee, for spotting these.

Jeff