I’d say my current BB58 definitely feels better made than my first 5513 and later 14060M. The bracelet is much better quality and the finishing and detailing seem higher. For instance I tried wearing the 5513 on a NATO for a while and the lack of finishing between the lugs seemed very poor. The bracelet was very jangly with a pressed clasp. All of the Rolex I’ve owned were very accurate for the first year to 18 months then wandered - and my BB58 is the same. Having owned every sports model of that era except the Daytona I really don’t understand the hype. I sold them all because they were all a bit boring if I’m honest. But glad I got to do that when I could walk into a shop, buy one there and then for £1500 -£2300 with no fuss or wait lists!