Hello. Received this Monaco 1533b yesterday (case is marked 1133 though). This is the one from eBay which was listed very recently. Dial has a very special colour. I remember there was a posting some time ago, discussing these Monaco 1533's were produced with a blue and/or a purple dial. Mine has no blue colour nor has it a purple colour, very difficult to say! It's in between blue and purple. Here are some pictures I just took. I will probably give the case and caseback a good ultra-sonic clean, replace some sealings and also the crystal...movement will be serviced later this month...so it will be ready to wear very soon now ;-) Enjoy the pics, Abel.