Seat belts for an 87 Testarossa (Switzerland spec)

Hi,
are there any replacement seat belts (not automatic) for my 87 Testarossa (Switzerland spec)?
The current ones in my car are Honeywell mod. 4648. See the photos in attachment.

I have an issue finding a replacement for my driver's side seat belt. Unfortunately, it has worn off quite a bit in one spot and it needs replacement.
I have looked around and I cannot find the same ones. Quite astonishingly, when looking for used ones I couldn't even find that the Honeywell 4648 were used on the Testarossa. All I found were the Ferrari part numbers 67422000 and 123087. I found some used ones at Red Bay Cars but the manufacturers are listed as either TRW or Klippan.
And when I see some photos from Honeywell seat belts used in the Testarossa they have a different tag with a different number (Ar4m, E2, 0402073) than mines.

How many different seat belts were used on the Testarossa? Seems like a lot of different ones from different manufacturers.

Best
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@lagunacc Thank you. Are these the same ones that were used in the Testarossa? Might be a stupid question but you only posted the link and no details with it


@Rifledriver How do you know they are replacements? They seem to have the same or a similiar date ("best before" or "production"?) on them as some of the ones that I have seen offered for the Testarossa.


@turbo-joe it was meant as a differentiation to the US version automatic seat belts

 

@lagunacc I checked out the Fiat ones and I don't really think they would fit.
I did however stumble over something completely different:
https://www.oldtimer-sicherheitsgurte.de/fahrzeugauswahl/porsche/dreipunkt-automatikgurt-mit-22-cm-gurtpeitsche.html
https://www.oldtimer-sicherheitsgurte.de/fahrzeugauswahl/sicherheitsgurte-fuer-oldtimer-und-youngtimer/dreipunkt-automatikgurt-mit-30-cm-gurtpeitsche.html
These are generic ones.

Does anyone happen to know how long the seat belt buckle is on the Testarossa?
The generic ones come in all lengths. 22cm and 30cm look right to me if I compare it to this here: https://www.ebay.com/itm/166728413213 or that one https://www.ital-spares.com/brand/ferrari/5962/counterpart-for-safetybelt/gurtschloss or that one https://ferrariteileschweiz.ch/2021/04/26/ferrari-testarossa-sicherheitsgurt-67422000/

Here is the diagram of the original one, Ferrari numbers 67422000 or 123087: https://www.ferrariparts.co.uk/part/ferrari/123087

 

Alright: here are some details. Maybe it will help someone someday.
I just ordered the generic ones: https://www.oldtimer-sicherheitsgurte.de/fahrzeugauswahl/porsche/dreipunkt-automatikgurt-mit-22-cm-gurtpeitsche.html
The 22cm length is roughly the same as the original. I measured the length of the original belt whips (belt buckle anchorage?) and they measure around 23-24cm from the middle of the borehole to the top of the belt whip.

I was also surprised that the measurements of the seat belt insertion tongue of the generic ones appear to fit the original Ferrari belt whips (belt buckle anchorage?).
Here is a diagram for the generic ones from https://www.oldtimer-sicherheitsgurte.de/. I will report back if the fit. But I measured the ones currently in use in my car and they are the same size
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I owe you guys an update here too. As I mentioned, I bought the generic ones (https://www.oldtimer-sicherheitsgurte.de/fahrzeugauswahl/porsche/dreipunkt-automatikgurt-mit-22-cm-gurtpeitsche.html for EUR 89.00). They were put in the Testarossa and they fit without modifications. They work without any problems with the original belt buckle. I can only recommend them