Changing the time while stopwatch running
Hello,I've recently bought an Omega Speedmaster 57' (with the 9300 coaxial movement) and i would like to use the chrono dial as a second time zone.would i harm the watch if i started the chronograph and then set the time 2 hours back (while the chrono is still running) ?Thanks !

Rare Omega single button chronograph
I recently had the opportunity to service a rare stainless steel, single button chronograph with the hack feature and thought you'd like to see some pictures. As noted on the case back, this model was made for the Royal Canadian Air Force.

3940 or 5711
Which Patek to get? They're both around the same price with the 3940 being slightly more expensive..

Nearly got scammed
I posted a WTB for a Pam 161 on Paneristi and after a few days I got a hit. I waited a couple of weeks and responded. The guy had the 161. I told him I had trust issues and needed references and pictures of everything that comes with the watch. He sends a bunch of pictures that looked pretty good but none of the pictures showed everything together. It showed box and papers and then a picture of the watch on its black cushion. I asked for everything together as there were one set of pictures of the watch with bracelet on and another with the strap. I asked for pictures of the watch as it is today. He sends numerous pictures of the watch showing today's date. So I'm still not sure so I google search that watch and look through a bunch of pictures and there it is. The exact same picture that he sent me on a dealer site. That guy thought I wouldn't check and just believe him. His one reference did respond saying he was a good seller. Obviously they were together. Honestly I have never had

Chromalight on T 25 Dial
Has anyone serviced their tritium dial Rolex and come back with new Chromalight lume?I know many are opposed to this as they prefer the patina look. Just curious to see if it's been done. I for one wouldn't mind picking up an older 16570 polar ( either Swiss Made or Swiss T<25) but would like to at least see it in the dark if it was a tritium dial.Sent from my iPhone using Tapatalk