This is a translation (reworked a bit) from Italian for the cigar method:
Ingredients: a cigar, a lighter, a glass, a piece of soft transparent plastic like those used to protect glass crystals, two white paper handkerchief (or one white paper handkerchief and a piece of Rodico), a little patience.
Procedure:
1. Cover the dial parts that you do not want to re-color (e.g. text) with the soft plastic. Do NOT use adhesive tape!
2. Place the dial and hands on the white paper handkerchief (its white color will help to evaluate the color change). Place the glass upside-down on the dial and hands.
3. Light the cigar, inspire a large blow of smoke, slightly lift a side of the glass, blow the smoke into the glass. (Don't place the cigar under the glass as someone said, this is completely unuseful as the cigar rapidly estinguishes its light due to air shortenage).
4. Repeat step 3 every 10 mins or so until you get the desired color.
5. Once done, remove the plastic, then remove any possible nicotine residuals off the dial by gently using a soft, clean paper handkerchief or the Rodico.
6. Enjoy the results.