Fast Track — Repair of fast track watch in warranty

Address:	Pauri Garhwal, Uttarakhand, 190006
Website:	Fastrack

Sir i have brought fast tract watch almost 3 months back online from amazon. As per the details the watch is water proof. But to my surprise it's not so. While i was walking during raining for just 5-10 mins that to with mild rain, the watch absorbed the rain. Now i want to repair the watch. Watch is still in warranty. Please sir tell me the procedure to fallow