Rolex 5513 Submariner: Date Scratched in 93150 Bracelet

I recently purchased (at auction) a Rolex Submariner 5513 WGS dated to 1985, with Papers and sold in HK in 1986
It was then purchased in 1996 from Austen Kaye, the Strand, in the UK

It came with a 93150 Oyster bracelet stamped 'J2' for February 1985, so I assume it's the original bracelet.
However, the bracelet has a date scratched next to the J2 engraving '6-09-94'

Has anyone seen this before.. Of course watchmakers would often scratch marks, date, etc into the caseback.
However, I haven't seen this on the bracelet before. So do you think this may indicate a service, or something else?

Yes, this was very common in services performed by official retailers.

service record, pawn shop markings, who knows, could be anything

cool.. it would be nice to think it may be a service record, but fully understand there's no way of knowing for sure?

Many thanks for feedback and ideas