🔍 CREST Dive Computer Serial Number Guide
Every CREST dive computer has a unique serial number printed on the back. The serial number identifies the product’s color, production year, production week, and unique unit number.
Use the guide below to read the serial number for your model:
🧭 CR-4
Example serial number: CBK25160015
| Position | Description | |
| Digits 2–3 | Color | BK = Black, WS = White, CR = Silver |
| Digits 4–5 | Production year | 25 = 2025 |
| Digits 6–7 | Production week | 01–52 (52 weeks per year) |
| Last 4 digits | Unique unit serial number |
🧭 CR-5L
Example serial number: CBK25160015
| Position | Description | |
| Digit 4 | Color | B = Black, Y = Yellow, W = Blue |
| Digits 5–6 | Production year | 25 = 2025 |
| Digits 7–8 | Production week | 01–52 (52 weeks per year) |
| Last 4 digits | Unique unit serial number |
🧭 CR-1
Example serial number: CR125160015
| Position | Description | |
| Digits 4–5 | Production year | 25 = 2025 |
| Digits 6–7 | Production week | 01–52 (52 weeks per year) |
| Last 4 digits | Unique unit serial number |
🧭 CR-F
Example serial number: CRFY25160015
| Position | Description | |
| Digit 4 | Color | Y = Yellow, P = Pink, W = White |
| Digits 5–6 | Production year | 25 = 2025 |
| Digits 7–8 | Production week | 01–52 (52 weeks per year) |
| Last 4 digits | Unique unit serial number |
📌 Notes for Dealers
- Always verify the product’s manufacturing date and clearly explain the applicable warranty coverage and replacement options to the customer.
- Please process all repair and replacement requests through the Online Service System to ensure that the submitted information is complete:
- 💻 Online Service System | rma-eopi-hub
- 📩 Email | info@crestdiving.com
Thank you to all our partners for your continued support!
Together, let’s continue creating safer and more rewarding underwater experiences for every diver. 🌊
— The CREST Team
