In my search for a hesalite/sapphire sandwich Speedmaster, I keep on coming across these strange, transitional models... Just now I have found this watch which apparently is a 3572.50 reference with what looks like a gilted 863 caliber inside. The warranty card is from Japan and is dated 1997. Now, I'm well aware there was a short window of time when they used tritium markers in 3572.50, but I haven't yet heard about 3572.50 with the old 863 movement... That said, I'm a complete newbie so perhaps someone can correct me if I'm wrong! Or, could it be that the watch had the original movement replaced? I'm posting a couple pictures of the watch in case it helps. Many thanks!
I believe (edit: from having read) the early ones could have an 863 as well... IMO that’s a score, as it’s a bit of a prettier movement
The only downside there is that the chrono second had seems to have faded to a very dark shade and may not look all that attractive in the flesh. It could be swapped of course.
Yes, I have one of these as well. All correct and quite unusual. Tritium dial. Mine is a 3572 too not a 3570
Hi, what you have is the 3592.50/3572.50, called "Professional Yellow" on Moonwatch Only. The distinguishing characteristics are the "Professional" see through caseback of the 3572.50 as well as the yellow gilt movement from the 3592.50.
Yes, it is correct as I have owned both 3592.50 with rhodium movement and 3572.50 with gilt movement. The gilt is “more rare” as produced shorter time frame.