1985 Royal Oak Audemars Piguet Questions
Well here is another mystery in the watch collection... I dont know much about the brand or model. Any information would greatly be appreciated.1985 Royal Oak Audemars PiguetC14927Purchased somewhere in Europe.

Which unitime?
Which would be your pick? All redgold.

Speedmaster Date Cordura strap works on Speedmaster Racing?
Could someone confirm whether the 19mm Cordura fitted strap on the Speedmaster Date be used on the Speedmaster Racing? Thank you for your answer.

Calatrava v. Chevron ('Henri Stern') deployant clasp
Having managed to satisfy myself with the help of responses to another of my threads, that the 5140 that I have just acquired did not have a rogue clasp (it had no Calatrava rose and turns out to be a since-discontinued 'chevron' or 'Henri stern' clasp), I have followed up on TRF and a few other forums as to the differences. Whilst there is plainly an identified issue with the safety of the chevron clasp, there is a sizeable body of opinion that strongly prefers it to the more traditional Calatrava clasp, for a whole variety of reasons. Not only that, but there are those that actually mourn its passing and regret that it is now very hard to find the chevron clasp.As this is my 'entry level' first PP, I have nothing to compare the chevron clasp with. Before asking PP whether they will give me a free swap (this seems to be available from what I have read), I thought I would sound out people's opinions on whether this would be an unwise move; not least as I guess that it is very much a

Nautilus Bracelet Durability
Anyone ever have a nautilus bracelet or clasp that needed to be replaced? Despite it's great comfort, it just does not seem that durable. Any personal experiences to share?