Sinn U1 AR Removal- Help!

Thread: Sinn U1 AR Removal- Help!

Results 1 to 8 of 8
  1. #1
    Member
    Join Date
    Aug 2012
    Location
    NC
    Posts
    1,088

    Sinn U1 AR Removal- Help!

    So I've read all of the how to threads. I have a dremel and picked up some 0.5 micron diamond paste and figured how hard can this really be? Ive been at it off and on for the past couple of days and while I've removed 90% of the coating I'm struggling with the outer perimeter as well as some random spots scattered around the crystal. I've tried changing the amount of pressure and increasing the dremel speed from 5000-20000 rpm with little luck. What am I doing wrong? I need suggestions from those who've accomplished this task. Thanks in advance.


    Sent from my iPhone using Tapatalk
    Last edited by jcar79; April 13th, 2015 at 05:43.

  2. #2
    Member
    Join Date
    Aug 2012
    Location
    NC
    Posts
    1,088

    Re: Sinn U1 AR Removal- Help!

    Here's an example of the AR remnants on the crystal. I've hits these spots with my dremel using diamond paste, 3M rubbing compound, rouge, and Nevr-dull... No luck. Hoping someone reads this thread and can shed some light. Thanks!




    Sent from my iPhone using Tapatalk

  3. #3
    Member dmcutter's Avatar
    Join Date
    Apr 2006
    Location
    Browns Summit, NC
    Posts
    657

    Re: Sinn U1 AR Removal- Help!

    You sure that's still AR and you haven't ground down the crystal?
    Your worst day stuck on the surface wishing you could get underwater is better than your best day stuck underwater wishing you could get on the surface.

  4. Remove Advertisements
    WatchUSeek.com
    Advertisements
     

  5. #4
    Member
    Join Date
    Feb 2006
    Location
    southern California
    Posts
    13,415

    Re: Sinn U1 AR Removal- Help!

    that's what I thought: looks like gouges from the dremel. Not a good tool for polishing a crystal, imo.

  6. #5
    Member
    Join Date
    Aug 2012
    Location
    NC
    Posts
    1,088

    Re: Sinn U1 AR Removal- Help!

    Looking at it with a loupe it doesn't appear to be the crystal. I sent it off to RGM to see if they can clean it up. If not, lesson learned and I'll have the crystal replaced.


    Sent from my iPhone using Tapatalk

  7. #6
    Member Geof3's Avatar
    Join Date
    Jan 2008
    Location
    Colorado
    Posts
    1,879

    Re: Sinn U1 AR Removal- Help!

    I don't understand the desire to remove AR... But to each their own. Scratching for me has never been an issue, and I use my watches for everything. I do agree, that it looks like you went into the crystal... Bummer...
    Too many flipped...

  8. #7
    Member dnslater's Avatar
    Join Date
    Feb 2009
    Location
    Indianapolis, USA
    Posts
    3,762

    Re: Sinn U1 AR Removal- Help!

    Quote Originally Posted by Geof3 View Post
    I don't understand the desire to remove AR... But to each their own.
    It isn't an issue, until it is. Many have an issue with a hardened steel watch with the weak point being a softer AR coating. I have had two Sinn's now (daily wearers) with scratches in the coating. Wore a Planet Ocean (Inner AR only) for two years daily with not a scratch.

    Kind Regards,
    Nick
    __________________________________________________ _______________________________________________

  9. #8
    Member Kisara's Avatar
    Join Date
    Mar 2007
    Location
    West Coast
    Posts
    197

    Re: Sinn U1 AR Removal- Help!

    Quote Originally Posted by dmcutter View Post
    You sure that's still AR and you haven't ground down the crystal?
    That was my first thought also. Regardless, do keep up posted with what RGM's findings are. And the repair/replacement cost!

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

    Similar Threads

    1. Sinn U1 AR coating removal. Did I go to far?
      By dnslater in forum Public Forum
      Replies: 25
      Last Post: May 1st, 2012, 04:37
    2. Replies: 33
      Last Post: September 9th, 2011, 12:44
    3. AR Coating removal - Sinn UX
      By Handel in forum Sinn
      Replies: 21
      Last Post: April 20th, 2007, 09:14
    4. AR Coating Removal ?? U.S. Sinn Repair?
      By suburude in forum Sinn
      Replies: 3
      Last Post: November 9th, 2006, 15:11
    5. Sinn Strap/Bracelet removal tool?
      By 303 in forum Sinn
      Replies: 7
      Last Post: April 2nd, 2006, 16:27

    Posting Permissions

    • You may not post new threads
    • You may not post replies
    • You may not post attachments
    • You may not edit your posts
    •