Water Proof Clock

I am looking for a key chain sized digital clock/thermometer/compass unit that is water proof. I want the units to be good quality that will not leak in the water and will last a long time. I will not sell the item as a key chain that attaches at a clip point, so the housing of the unit should be without an attachment loop. I plan to market the item in the USA.
This is a new business I am starting, and I am searching for an existing product that I can market to a specific target audience. To begin, I will make a minimum order so I can determine the demand for the product in my target market. I plan to sell at least 100,000 units the first year and grow from there.
If you have a water proof digital clock, thermometer unit i will be very interested in communicating with you soon. Please contact me by Email or by telephone in California, USA (PST) I hope we can do business soon.

Carl Perkins