I don't know what it is with people wanting mechanical movements, from chatting with my mates, they are a PITA to keep wound, don't keep the best of time either and cost a lot more than quartz movements.
I have a few of the usual brands and all my movements are quartz, they keep time perfectly don't need servicing all the time and replacement battery by a certified jewellers who ensure the integrity isn't compromised is less that a £100 ever 3 or 4years.
Even my 70's Gold Omega Seamaster is quartz and doesn't miss a beat.
I bought a Tag Modular 45 Connect last week as Tag claim better integration with the iOS and they aren't wrong, apart from your contacts and calendar everything else works seamlessly, I'm not worried about my contacts as when I get a call it displays the name exactly as filed on my phone, my calendar is better managed on my phone so there's no loss there.
I may eventually switch to Android anyway as getting Pi55ed off with Apple keep updating with 2.5GB downloads on each and every Apple device, just need to work out what to do with my playlists and Apple purchased music, which incidentally is perfectly controlled through the Tag as soon as the music starts playing.