Dear fellow Sinn-ers,

I am as of recently a very happy owner of a Sinn 105, which I absolutely love – having said that already after 5 days of regular wear I noticed first scratches on the outer AR coating:

I wear the watch normally, home – office – home, do not work in a mine or a quarry ( ) and while I understand that over time the outer AR coating will get scratched / damaged literally 5 days of no extreme exposure seem a bit too soon for me…

outer AR coating's durability

Hi Guys,

Long time ago, to secure happy marriage, I made a deal with my wife to limit my purchases to one piece a year. It’s a fair approach and allows me to spend some time with the latest purchase and appreciate it instead of focusing on the hunt. On the other hand it gives me a lot of time to think and plan – and I am an analyzing type myself anyway, making lengthy considerations on what will fit best my collection.

Ah, one additional thing: I’ve started with low to mid tier watches…

Advice needed: fixing my 2025 – 2026 watch plans