Never seen this before. https://www.ebay.com/itm/Heuer-Auta...498288?hash=item288d6e2730:g:mToAAOSwArteLIpkPurchases made through these links may earn this site a commission from the eBay Partner Network Any guesses on what it will go for? My guess is $7000 US
according to Calibre11.com Decompression bezel: The second diving bezel is also denoted by the “P” suffix. To operate, you rotate the bezel so the triangle lines up with the minute hand. turn the bezel so the 12 o’clock triangle lines up with the minute hand, like any regular divers bezel. This tells you how long you have before needing decompression at various depths. So, if we starting diving at 7:00 using the watch above at a depth of less than 45 meters, then ending the dive now (7.09 as shown above) would mean no need for decompression. This bezel doesn't make sense with a racing inspired package like this but who knows.
@kingsrider I've seen these cases before, they also used what looks to be the same helmet as a mount for a desk clock. I guess I should have added that. https://www.google.com/search?sxsrf...iO5YjOlqrnAhVCFzQIHUbxCZoQsAR6BAgKEAE#imgrc=_