Certainly the bracelet and clasp are huge improvements on the 126610 and the ceramic bezel is quite alluring to my eye. The 16610 wears well as itās a bit lighter and being only 20 years old and was originally bought new by my next door neighbour itās completely original and has never been polished at all. I bought from him only one year after he bought it. Older pieces than that are intriguing but a minefield which I havenāt been tempted to navigate. I own a 1960 OP which is all original but I was fortunate to buy that a long time ago when an occasion presented itself. The OPs bracelet actually detached but I was not wearing it so not lost or damaged but these old bracelets make me very nervous. Anyhow to each there own, those two pictured are both lovely āŗļø