This tool does an OK job but it was designed for split pins, so you'll need pliers to get the pin out the rest of the way:
https://www.ebay.com/itm/Bulova-Wat...564258?hash=item4b75b85e62:g:ihgAAOSwlpleZZWhPurchases made through these links may earn this site a commission from the eBay Partner Network
Also some blue painter's tape to prevent marking the bracelet.
Any of the tools on this page are likely to work:
http://www.ofrei.com/page237.html
Me? I use a bench vise with rubber jaws, a 1mm punch, and a ball-peen hammer. To put the pin back in, I either use the vise if it's really tight, or press the pin in using the hammer, and then seat it the rest of the way with the punch.
Pay very close attention to the arrows. The pin comes out with the arrow, and back in against.
Note that if you have a relationship with a jeweller/watchmaker, they will often do bracelet adjustments for free or very inexpensively. This is often money well spent if they're competent. I once had some counter monkey dent a brand-new Speedmaster bracelet being too vigorous with hammer.
Tom
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