Casio bring you a watch which comes with stainless steel strap. You don't have to worry about it getting slightly wet.
From Amazon
Casio Collection Women's Watch LA680WEGA-1ER
Watch Shop
Casio 'Collection' Gold and LCD PVD Gold plated Quartz Chronograph Watch - LCD / Gold
Watchia
Casio Vintage LA680WEGA-1ER