Broken Backside in the OHR sensor?
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@GiPFELKiND and if it makes you feel any better, I once dissolve a vintage Montblanc Meisterstuck fountain pen into a gelatinous blob by using the wrong solution to clean it.
Alcohol and acetate don’t play nice.I consider it a $1,200 usd lesson in chemistry!
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@Todd-Danielczyk
Thank you so much 
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@GiPFELKiND
the cracks in the red circle look like they all or most of them have one starting point and it could as well be an exceeded point load and result in mechanical stress and cracks -
If I look to the back of my SV, it’s seems perfect (thanks to new SA activies analysis I can proudly claim that since May 16th it has recorded 296 exercices during 387 hours, 2900km, 79km elevation, and was worn H24 with sleep tracking
).
If I take time to mount my macro photo lens, zoom in zoom in again, back looks “irregular” like on @Brad_Olwin pictures.
It not eye noticable, but when highly zoom it’s not perfect…(I bet i would die if I was looking with a microscope)
But for me it looks more like small coating irregularities under the back, and very very very small surface scratches amplified by light position and zoom.@GiPFELKiND sorry for you it happens to you again. One default watch is bad luck, two is bad coincidence, three is really suspicious.
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@Todd-Danielczyk said in Broken Backside in the OHR sensor?:
vintage Montblanc Meisterstuck fountain pen
yeah my daily driver on the paper! sorry to read that!
btw this is mine after 4 months (worn 24/7, housework, sawing wood, running on trails, sea kayaking, lots of keyboarding
). Not a single scratch!
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@westie Same here… I have just checked my SV, there’s literally no scratch on the sensor. I guess I am not training enough
