How to Find the Model or Case Number of Your Watch

How to Find the Model or Case Number of Your Watch

When ordering replacement parts, watch straps, or accessories, it's essential to know your watch's model number or case number. These numbers identify the exact version of your watch and ensure compatibility with spare parts.

 

📌 Model Number vs. Case Number vs. Serial Number

• Model Number: The reference number of your complete watch. Usually found on paperwork, the original box, or engraved on the case back (e.g., T137.410.11.041.00).

• Case Number: Stamped on the back of the watch case (e.g., 7S26-0020, T055417A). This helps identify compatible parts like bezels, crystals, and gaskets.

• Serial Number: A unique production code engraved on the case back or between the lugs.
  🔍 Note: While many people refer to this number, it is not needed to find replacement parts. It only identifies the specific production batch or unit, not the type of parts used.

 

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🕵️ Where to Look

1. On the Case Back

• Flip your watch over and look at the back of the case.

• You may see a number like: 7S26-0020, V157-0DL0, or 7T62-0ED0.

• This is usually engraved or laser-etched on stainless steel or metal case backs.

2. Between the Lugs

• Some watches have the case number engraved between the lugs, where the strap connects to the watch. You may need to remove the strap to see it.

3. Original Box or Paperwork

• Check the original packaging, instruction manual, or warranty card.

• The model number is often printed here, typically starting with a few letters (e.g., SKX007, SNK809, AR2452).

4. Inside the Case Back (Advanced)

• For professionals or experienced users: Some case numbers are only visible inside the case back.

• This requires opening the watch and should only be done with proper tools.

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🔢 Common Seiko Formats

🛠️ Still Can’t Find It?

Take a clear photo of your watch (front and back) and contact our customer support. We’ll help you identify the model or case number so you can find the right parts.

 

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✅ Why It Matters

Finding the correct model or case number ensures:

• Compatible straps and bands

• Perfectly fitting gaskets, glass, bezels, or crowns

• Accurate repairs and replacements

• Maintaining the value and originality of your timepiece

 

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Need help? Contact us with your watch photos or visit our Watch Parts Finder Tool.

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