Houston
24
Nothing to worry about
Remember of course that if yours is a 3570.50, it has the added protection of an anti-magnetic dust cover.
Enjoy the Speedy. It is after all the " Pro's " choice 
Best WIShes
Houston
Speedy Pro question
By: mfly : February 11th, 2008-21:46
How well is a Omega Speedy Pro with a 50 meter water resistance rating protected against contaminants, dust, etc? I was wearing my new Omega Speedy Pro the other day while installing some fiber glass insulation in my house. Afterwards I started to wonder ...