Whether you're a watch enthusiast or a first-time buyer, choosing the right strap starts with knowing your Rolex's lug width. This simple measurement makes all the difference when switching to leather, NATO, rubber, or custom straps. Here's a complete breakdown of lug sizes across Rolex's current collection to help you make the perfect match.
⌚ Lug Widths by Rolex Model Family
| Model Family | Case Sizes | Lug Width |
|---|---|---|
| Submariner | 40mm (pre-2020) | 20mm |
| 41mm (2020 and later) | 21mm | |
| Sea-Dweller | 40mm | 20mm |
| Deepsea | 44mm | 22mm |
| Datejust 36 | 36mm | 20mm |
| Datejust 41 | 41mm | 21mm |
| Day-Date 36 | 36mm | 20mm |
| Day-Date 40 | 40mm | 21mm |
| Oyster Perpetual | 34mm, 36mm | 19mm – 20mm |
| 41mm | 21mm | |
| Explorer I | 36mm (modern) | 19mm |
| Explorer II | 40mm (older) | 20mm |
| 42mm (current) | 22mm | |
| GMT-Master II | 40mm | 20mm |
| Cosmograph Daytona | 40mm | 20mm |
| Yacht-Master | 37mm | 17mm |
| 40mm | 20mm | |
| 42mm | 21mm | |
| Sky-Dweller | 42mm | 21mm (steel) / 22mm (gold) |
| Milgauss | 40mm | 20mm |
| Cellini | Varies | ~20mm |
🔍 Why Lug Width Matters
Lug width determines what strap size will fit your watch. Even a 1mm mismatch can look odd or cause fitting issues. Matching the correct lug width ensures a secure, comfortable, and stylish fit.
✅ Shop By Lug Width
At our store, we make it easy to shop for compatible straps. Browse our curated collection by lug size:
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19mm Straps for smaller OP & Explorer
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20mm Straps for most classic models (Submariner 40, Datejust 36, Daytona, GMT)
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21mm Straps for Submariner 41, Datejust 41, Day-Date 40
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22mm Straps for Deepsea, Explorer II 42mm, some Sky-Dwellers
Need help choosing the perfect strap? Contact us and we’ll help you find the best fit for your Rolex.