leather

Using leather products

Q: I have a watch which has a genuine leather strap. My question is whether it is permissible to wear such watches because we are not aware of whether the animal used for the leather is halaal and has been slaughtered in the halaal way.

Making masah on leather shoes

Q: As if we wear leather socks so we do not need to wash our feets on every wadhu, masah is enough to complete the wadhu? So I want to know likely as if we wear cotton socks an on it we normally wear leather shoes so is it allowed that we do only masah like we do on leather socks, will the wadhu be valid?