Seiko 7A38A - Things you don't want to find.

I'm servicing a lovely little Seiko 7A38A-7110 "Speedmaster" for a fellow member.
From a distance, the watch looked very nice, but closer inspection made me think that this watch had spent a long time in a hostile environment, possibly close to the sea.

Bracelet was removed and the case was given a good clean with pegwood and a stiff brush so that no foreign matter would pollute the movement.
However, after opening and removing the movement and pushers, I needn't have bothered. The pusher on the left does not have any lube on it, just H2O.



Pusher seals had ceased to function as designed and the result was the reason the watch didn't work, the "chrono start" switch lever was frozen solid with rust.
😬



Some cleaning and treatment with Bergeon Rust Remover and I think it'll be fine.



Hopefully no more surprises.

Not bad for a 41 year old quartz movement.
😉

I think I'll take it up a notch to get a + output.

I think this is as close I'd like to go.
Still "losing time", but the next notch up on the rotary step switch takes it to +2.3 SPM.

You know when you do something and think to yourself "yep, that's OK".
And then when you've walked away to do something else, you think "no, bugger it, it's not quite OK".

I'm happy now, I'm going to reward myself with a black'n'tan.

There is an adjustment on the movement. See the below image. RIGHT above where it says 7A38A there is a little adjustment.

I know what you mean! I've done a few now and know that if it's getting annoying, take a break.
I use a fine copper wire with a tiny bend at the end so I can get under the bridge to manipulate the wheels, mainly the damn little rotor.

On this one after about four tries I walked away for a bit, came back and as I started again, I bumped the bridge with my finger and it fell onto the pivots 😲.

I very gently held it down with a probe while I used my other hand to pick up screws and insert them, turning them in with the tweezers until I could release the probe and use a screwdriver.