I bought another 7546 recently, knowing from the sellers description and pictures that it had almost certainly suffered battery leak damage:

and those words we watch tinkerers love:
"I do not have a battery either so don't know whether it is in working order. Therefore, selling as spares or repair."
Yeah, right.
:idisagree:
I was hoping the dial was ok, but from the sellers picture it was unclear whether that discolouration ring was on the underside of the crystal or on the dial.
I could also see that the date ring was damaged, and given there was no movement picture I feared the worst.
Still, at worst it should be good for a few parts.
When it arrived a first gentle test to set the day/date proved that the date ring was stuck solid.
Time to see what's inside .....
A major battery leak:

just look at those crystals

and here's the dial side

with a corroded date ring

and the PCB

and under the bridge

to be honest this was exactly what I was expecting. Now then, can we get this one working again?

and those words we watch tinkerers love:
"I do not have a battery either so don't know whether it is in working order. Therefore, selling as spares or repair."
Yeah, right.
:idisagree:
I was hoping the dial was ok, but from the sellers picture it was unclear whether that discolouration ring was on the underside of the crystal or on the dial.
I could also see that the date ring was damaged, and given there was no movement picture I feared the worst.
Still, at worst it should be good for a few parts.
When it arrived a first gentle test to set the day/date proved that the date ring was stuck solid.
Time to see what's inside .....
A major battery leak:

just look at those crystals

and here's the dial side

with a corroded date ring

and the PCB

and under the bridge

to be honest this was exactly what I was expecting. Now then, can we get this one working again?