He uses electric Pokemon. His Pokemon differ between "ruby and sapphire" and "emerald".
helping wattson isn't manditory so from mauville go up or north
Wattson is near the Pokemon Mart in Mauville.
Wattson the electric gym.
Wattson is easy as long as you have a ground type Pokemon like Marshtomp and use ground type moves like mud shot or have a grass type Pokemon like Grovyle or Breloom.
Peekachoo
mauville city gym leader wattson
roxanne, brawly, wattson, flannery, norman.
the third gym leader wattson.
'farfetch'd does not evolve' what? the third gym is in mauville. The leader is 'wattson' and he uses electric pokemon.
The third gym leader in Pokemon Sapphire is Wattson and he is located in Mauville City.
Defeat the 3rd Gym Leader, Wattson, in Mauville City.
First beat the Mauville Gym leader, Wattson.