I am assuming you mean outside cleaning. You can use warm water with a miniscule amount of Iory dish detergent, or equivalent and make a solution and wipe down the braclet, then dry it. If you have grime between the links, I have heard them advise in Tourneau to use a soft toothbrush. But there are other watch forums on the Web where you can get more detailed information. I believe timezone. World of Watches also provides watch care tips. For scratches on stainless steel, I would take to a jeweler
BTW, I would not immerse a watch, no matter how water resistant. Best of luck.