... 40mmWeight:50g Water resistant Schematic diagram:We also have a wide range of other silicone watches. please feel free to contact me ... number. What's the MOQ?1000pcs,300pcs per colorWhich kind of certificate would you have?CE,ROHS,SGS,REACH.All watches is lead,cadmium ... production,our production manager will do assembly of 100-200pcs as a test to see the points we have to pay attention to ...