Help identifying serial no. on this 1970s Connie

Hello folks. I've just acquired this 1970s 'TV' Constellation with the (in)famous 1001 calibre, and have sent it off for a service to The Watch Guy, as helpfully recommended on the forum. After de-casing it immediately (there was a suspicion of condensation, but it turns out someone has smeared grease on the dial(!?). While they work out how best to remove it, they sent a few photos, one of which appears to show the serial number. But as per the title, I'm having trouble determining the numbers clearly. (I'd love to find out the watch's manufacturing date.) I'm assuming it is the serial - any expert help would be grand. I've asked for a more hi-res shot when they come to work on it properly, but I think it'll be a while now, as it's been put in a long queue.

I had a crack at deciphering the serial no. and determined that it was put together in 1970, which it turns out was correct.