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Sinn Fall 2025 releases

I got the email this morning from Watchbuys. Four new 556 limited dial colors with strap/bracelet options and a couple EZM divers. The 556 in ice blue with textile is my fave.

…

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News from the Watch Industry rk watch service Sinn

This Beauty is Available To Reserve from Watchbuys 10/8/25

I just received this email from Watchbuys yesterday. I'm a sucker for white dials and I really like the looks of this one. Sure would hurt the bank account.

Sinn-EZM-3-SW-Divers-Limited-Edition-181p8184.htm

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News from the Watch Industry rk watch service Sinn

DIY Beadblasting on my “new” Sinn 256

Just wanted to share a fun DIY project I just completed. I recently purchased a roughly 20 year old Sinn 256 from Japan. The watch was well cared for but the matte beadblasted finish was getting a bit shiny on the lugs and sides of the case. The bracel…

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News from the Watch Industry rk watch service Sinn

Sinn to Present at 2026 Watches and Wonders

Hodinkee reports that Sinn, amongst 9 other brands, will join the fair in 26. My initial thought is they must have something significant to share in the works, as it’s a considerable expense to participate. New model? Refreshed cases on mainstays ( t…

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News from the Watch Industry rk watch service Sinn

Sinn U50 Hydro quartz

Sinn have this year released a new model, the Sinn U50 Hydro.

Now, this to me looks like it is designed to replace the Sinn UX Hydro. Similar pricing. Similar functionality.

The UX uses a thermocompensated quartz movement which is chronometer certifi…

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News from the Watch Industry rk watch service Sinn

Sinn end links

Hello all. I recently bought a Sinn watch at auction and it’s missing one of the end links. I bought some replacement links but they are to big and do not fit the case. They do fit the bracelet. I’m having trouble finding the right links. Can someone…

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News from the Watch Industry rk watch service Sinn

Is it a better clasp?

I just found a copycat that IMO has a nicer clasp implementation than the Sinn.

Maybe the Sinn clasp has greater margin of adjustment, but I like better this clasp. Her is the actual link of the bracelet that moves instead of a clasp extension.

…

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News from the Watch Industry rk watch service Sinn

outer AR coating’s durability

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:

…

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News from the Watch Industry rk watch service Sinn

Sinn 556 and Sellita SW200 problems

Hello,

About a year ago I purchased an 856 and a 556 I RS.

Within a few months, the 556 exhibited severe resistance on winding and wouldn't hold a full "charge." I had it serviced under warranty and it still didn't feel silky smo…

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News from the Watch Industry rk watch service Sinn

Is your Sinn Reliable?

I bought a used U1 from somewhere… I cant remember. I either traded for it or bought it outright on this forum.

Its been two years. Last year I wanted to take it on an overseas vacation with me and it stopped working two days before so I took a di…

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News from the Watch Industry rk watch service Sinn
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    RK Watch Service
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    Northbrook, IL 60062
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