Cartier Ceinture, 18k yellow gold

Help identifying a 1960s Longines
Hi all,I've just been handed down a Longines watch from my late grandfather. It was given to him around 1965 after 20 years in a job, and I'm wondering if it's possible to identify the watch in particular?Sorry for the not so great photo, but the watch appears to be gold (plated?) - though it's hard to tell in the photo because of the messed up white balance. the strap is clearly not original, and i'll be replacing it with a leather one, but identifying the model will also help so i can try and restore it to how it would've looked 45 years ago!I should note it's automatic (i.e. you wind the knob on the right to power it).Thanks for any help

add 1 more!
this is the elgin i just bought, its along the same lines as the fossil twist.

A Strap Tale
So I bought a ML Open Heart Masterpiece from a well known member here and with the watch came a brand-spanking new strap. Of course the strap is a bit too small, I was given the receipt so it should not be a problem getting it exchanged, right? Wrong, when I contacted ML parts she did not want to hear anything from me, I was not the original purchaser. "Get the original owner to contact us" she replied. Not a problem, he is a great guy. He calls and he too gets blown off. Hmmmmm. OK I call again looking for names of managers, vp's or anyone in Switzeland. After I got the manager's name she said "what's the problem?" So I said "your parts person is unreasonable" or words to that effect. Jessica says "what is the model number?", what is the name of the original purchaser?", then she says " send me a copy of the receipt and your name and address with the strap". This morning the new larger strap came. It cost $50.00 more and some aggrevation.

Stolen AP - please be on the lookout
Hello AP members, I am saddened to have make this post.During my visit to Barcelona Spain, I was physically assaulted by two men who robbed me of my treasured AP Bartorelli on July 11, 2017.I am told that usually it's a pickpoket crime and one doesn't even know until back at the hotel, everyone, including the police, were surprised by the physical attack. It could have ended much worse had they used weapons.There is a police report, the watch details have been shared on many other watch sites, with watch dealers, reported to a 'stolen watch database', and AP has been notified.I just kindly ask to be on the look out for this watch. It is rare and if/when it surfaces it should be easy to spot.It's an Audemars Piguet Bartorelli ROO Scuba 125th Anniversary. This timepiece has a PVD case and bronze bezel. There are only 50 of these out there and this is numbered #36/50. Thank you for listening and PLEASE be careful out there!!!!!

Ginza Ceramic
Picked this up at the NY boutique after a client decided he didn't want the watch, wanted to share some pics. Definitely enjoying the watch.