Size Guide
Choosing the perfect ring size is an essential part of the Hardy Brothers experience.
Our guide below will help you find the most accurate fit, ensuring comfort, elegance, and a seamless expression of luxury.
| Australian Size | Inside Circumference (mm) |
|---|---|
| H | 46.0 |
| H ½ | 46.6 |
| I | 47.2 |
| I ½ | 47.9 |
| J | 48.3 |
| J ½ | 49.3 |
| K | 49.6 |
| K ½ | 50.3 |
| L | 50.5 |
| L ½ | 51.5 |
| M | 51.8 |
| M ½ | 52.5 |
| N | 53.1 |
| N ½ | 53.8 |
| O | 54.5 |
| O ½ | 54.8 |
| P | 55.7 |
| P ½ | 56.4 |
| Q | 57.1 |
| Q ½ | 57.6 |
| R | 58.4 |
| R ½ | 59.1 |
For the most precise fit, we invite you to visit a Hardy Brothers boutique where our specialists will personally measure your finger and ensure your chosen piece is crafted to perfection.

Hardy Brothers uses standard Australian ring sizes.
| Australian Size | Inside Circumference(mm) |
| M 1/2 | 55.7 |
| N | 57.0 |
| N 1/2 | 58.3 |
| O | 59.6 |
| O 1/2 | 60.9 |
| P | 62.2 |
| P 1/2 | 63.5 |

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Subtract the case size of the timepiece from your wrist measurement
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Enquire about Oris Big Crown Manual Wind Men's 38mm Watch 473 7786 4065LS
Details
| Vendor | Oris |
| Metal | Stainless Steel |
| Case Diameter |
Product Description
The classic Big Crown Calibre 473 is a milestone watch. Its five-day, hand-wound calibre is the 10th calibre we’ve created in-house over 10 years, an achievement only made possible by our independence and innovative spirit.
This model retains the oversized crown and pointer date function of the original Big Crown watches. It features a new a new in-house developed hand-wound movement, Calibre 473, a 38mm stainless steel case, a lagoon blue dial, and a sustainable deer leather strap.
The Calibre 473 is a milestone for Oris, marking their 10th in-house developed calibre in a decade. It's the first hand-wound movement in the Calibre 400 Series and the first to feature a power reserve indicator, visible through the watch's case back. This exemplifies the joy of mechanics.






























