Backtrek Watch is too OP too, just add a nightmare fuel cost like alarming clock should be a good idea in my oppinion ^^
same for the Second chance watch.... a little nightmare fuel cost !
Wanda's Alarming clock too OP : best damage of the game and a gooood range... and refuelable. I think the average damages can be lowered and after the damages bonus by Wanda's age can be more efficient (this point is already a good mecanic (glass canon style)) :
exemple : Damage between [55 - 130] based on wanda's age ( insted of actual [81.6 age stade 1; 97.92 at stage middle age; 142.8 at old stage] )
(an Exponential interpolation instead of 3 stage of age on this damages can be also another way for nerf damages of this OP weapon and a better use for the interesent Base age mecanic)
any opinion or another comment or idea ? 
(sorry for my poor English skill 
)