Hi, I've got a broken spring bar on my Tissot PRC 200 and would like to replace it. I understand that it has got a lug width of 19mm. Does that mean I should buy a 19mm spring bar, or should it be a 20mm spring bar? Thank you.

Two of the spring-bars broke on the clasp of my PRS200, so I took it to an un-named watch repair shop that was closer than the Tissot-authorized store (Leslie Gold Watch Co.) at which I bought the item 5 years prior. After the repair, the clasp kept popping off, so I took it to the Tissot store, and they told me that it was because the ends of the bars didn't fit properly. They replaced the faulty bars for me at no cost, and the watch has been sitting on my wrist fine for the last year-and-a-half.