Screw down crown is stuck

[Khan]

Hi

I have a seiko 7002-700a, a scuba divers automatic watch that's needs service. I'm not able to unscrew the crown from the case. 

Any idea what to do? 

 

 

 

 

[watchweasol]

Hi  I Take it it is stuck to the case, if so try a little easing oil/penetrating fluid around the join in the hope it will capilliary feed into the threads thereby enabling it to be moved. Be aware that any oil etc will probably destroy the gasket in the crown.  Once soaked using pliers protect the crown and ease gently. use no undue force.