Help: Tuners for '89 Silhouette…

Hi. First post from a newbie to the forum. I’ve tried the search function and not found what I’m looking for – but, TBH, I’m nt very good with search facilities anyway…

I’ve owned a 1989 Silhouette from new. It’s still my main electric guitar. I bought it from Paula at Chandler Guitars in London in Jan 1990, about 8 weeks after the guitar was finished at the factory. It’s a rosewood neck, sunburst SSS hardtail.

The tuners have started to wear out – gears are slipping when I tune up. It stays in tune once I get the strings there. I’d just like to replace them, not upgrade to anything else. They’re non-locking Schallers (made in West Germany, they’re that old…). I’m having trouble identifying exactly which current Schaller model I should be ordering to change them over.

If anyone can help, I’d be grateful. Thanks! Even if the help is explaining how I missed it when searching… 🙂