I don't believe it is possible, but, if it is, there should be some kind of link on flickr which lets you copy your photo there and then post it here. Your links did show up in your other thread to which I responded.

Hello and welcome to the forum.

The crud that you see appears to be on the underside of crystal, but, if it is on the dial, I doubt there is anything that you can do short of replacing the dial. If it is on the crystal, it can be replaced.

jP

FOR SALE: 1991 GMT-MASTER II 16710, serial X4xxxxx, complete set, with the warranty paper coded for a "Pepsi" bezel insert and the 62510H Jubilee bracelet with 502 end links and the correct "50" stamping on the last links. The watch comes with the original box, warranty paper, b...

FOR SALE: This late production Submariner 16610 is being offered here from one of the last years of production - being sold during the end of 2011. If you've been holding out to add a nice Submariner to your collection, this could just be it. This full luminova Submariner is a "no holes" c...

FOR SALE: 1977 Rolex GMT-MASTER 1675, serial 5.1XXXXX, with the correct Mark IV full tritium dial and original, matching full tritium hands. The original 78360 bracelet with 580 end links and 1977 "B" clasp code. The bracelet is very nice and in excellent condition with 12 links. The dial...

FOR SALE: 1991 Rolex GMT-MASTER 16700 with its original"Pepsi" insert and original tritium dial and hands. This is a complete set with the Your Rolex Oyster booklet, the GMT owner's booklet, translation booklet, the red chronometer hang tag and both the inner and outer boxes. The watch we...

Below is a fake GMT 1675/16750 bezel insert that I ran across lately which is almost impossible to tell from the genuine article. This red back version has proper colors as well as the fonts looking very similar to the genuine inserts. What gave it away as being "fake" was the weight and d...

Another variation of a fake GMT 1675/16750 bezel insert: Below is a fake GMT 1675/16750 bezel insert that I ran across lately which is almost impossible to tell from the genuine article. This red back version has proper colors as well as the fonts looking very similar to the genuine inserts. What ga...

FOR SALE: 1985 GMT 16750, serial #868XXXX, on the original Oyster 78360 bracelet with all 13 links and a K clasp code (1986). This is a very nice correct watch which is free from any cracking or corrosion on the dial or hands. The tritium dial markers and hands properly glow white under an ultra vi...

Good things can be had for those with patience- even during these times of high inflation and diminishing watch prices. The later models have seen some significant price reductions this year, but many of the quality vintage models are still in demand. Additionally, while nice vintage sets are rarely...