PDA

View Full Version : Watch Crystal Polishing?



INGNUT
02-26-2005, 03:53 PM
Hi,
Can anyone tell the proper way to polish watch crystals on a buffer? Need to know buffer speed, type of wheels & rouge, etc.
Thanks for your help,
Ingnut

Evan
02-26-2005, 04:15 PM
Use cerium oxide and do it by hand with flannelette. There is also a product called "Glasswax" that should work.

Use a lump of oil based modeling clay pressed to the inside of the crystal to hold it.

[This message has been edited by Evan (edited 02-26-2005).]

precisionworks
02-26-2005, 05:41 PM
Simichrome polish and Flitz polish:
http://www.flitz-polish.com/?source=gg&camp=flitz&grp=name&term=flitz
both work well. Apply with a soft cotton cloth (old tee shirt).

gunsmith
02-26-2005, 06:32 PM
Be careful. Most watch "crystals" are not crystal at all but plastic today. "Crystal" does polish with cerium but not plastic. Plastic polish is also available from lapidary supply houses. A simple test if you are in doubt is to take a dress makers pin and along the edge if it is accesable drag the pin. If crystal it will slide and leave no mark. If plastic you will have a scratch. For polishing either, I use a power buffer and the speed is about 3000. A gentle touch and a spotless clean 6" to 8" wheel with your compound. Find an old beater to practice on first .

[This message has been edited by gunsmith (edited 02-26-2005).]

[This message has been edited by gunsmith (edited 02-26-2005).]

Tinker2
02-26-2005, 07:31 PM
brasso works great

Thrud
02-26-2005, 09:45 PM
Gunsmith is right - I had a seiko divers watch with a saphhire crystal - you would need diamond to polish it.