Behind the Scenes: How We Authenticate Your Timepiece - OMI Jewelry

October 30, 2019

Buying pre-owned watch online might feel like an opaque process, but there’s a lot happening behind the scenes. At OMI Jewelry, our team of experts works tirelessly to ensure each piece meets our rigorous standards, from authentication to customization. Keep reading to understand what exactly happens between the time you purchase and when you receive your timepiece.


 First, we check all paperwork, documents and descriptions of the piece. This information should align with the product received. The serial numbers on the piece should match the serial numbers on any warranties or certificates. 

It’s also crucial to understand what parts are authentic to the piece. Sometimes watches will have authentic replacement parts, but they aren’t actually original to the watch being sold. A watch expert is able to identify if all parts are truly original to the piece, or if someone is trying to pass off a “Frankenwatch” as the real deal.

After determining the watch matches the paperwork and description, and no other obvious external inaccuracies are observed, we then examine the internal components of the timepiece. The movement is inspected for authenticity, timekeeping accuracy, and condition. It takes a trained eye to distinguish an authentic watch movement from a knock off. An expert must evaluate even the smallest of details-- they even know if the screws and metal finishes are consistent with the watchmaker’s standards.

In-house Servicing


After we authenticate the watch and determine that is up to OMI standards, we then evaluate if any additional servicing is needed. This includes polishing and repairs by our in-house watchmakers. There are so many possible defects that could eventually lead to frustrations and future servicing. Before a timepiece leaves OMI Jewelry, we ensure that all parts are functioning to the highest standard. 

Here are some of our services:

  • Watch Movement Overhaul and Cleaning
  • Watch Battery Replacement
  • Restoration of Dial and Hands
  • Broken or Cracked Watch Crystal Replacement
  • Stem and Crown Replacement
  • Watch Band and Strap Replacement
  • Bracelet Sizing
  • Bracelet clasp replacement


You can customize any timepiece at OMI Jewelry with our diamond setting services. Just contact customer support and we will work with you to create your dream watch. You can decide what size diamonds and type of setting (regular or Flower). Our experts then sort the diamonds according to your preference and our in-house diamond setter then carefully places each diamond. 

Appraisals & Shipping

Before shipping, we appraise the piece and provide documentation so you can rest assured that you have received an authentic piece and understand its value. This is especially important when buying pre-owned as these watches often don’t come with the original manufacturer’s paperwork by nature.

After we ensure your piece is authentic, in perfect working condition, and meets all customization requirements, we’re finally ready to ship! Each package is insured for the value of your timepiece and shipped for free. However, once you receive your timepiece, the OMI relationship doesn’t end there. We also provide a one-year warranty in the rare event that there’s a watch defect or flaw so you can feel confident in your purchase.

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