You've got a 1991 Europa, and it features the nicest barrel-type jack available at the time, a Switchcraft. This part is made with a modular connector because even though it's the nicest barrel type jack, it's not as nice as we would like and we realize it will wear out. Replacement jacks are available for $15 prewired or 2 for $25.
We use a different connector now, a long-frame jack. These are the same as were used in old telephone switchboards! They have a chunk of welded palladium for the contact and they are rated for like 500,000 or 1,000,000 insertions, I forget. Anyway, it's probably longer than my lifetime!
Sadly, the new jack isn't able to be retrofitted to your bass - it's longer internally (lots!) and the mounting hole is a smaller diameter. But really glad to hear your bass got 23 years out of the jack.
P.S. Some of the premium cables with gold plating are larger than a 1/4 diameter (!) so if you are using a gold plated connector, do check that the diameter doesn't exceed .250