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 Baume & Mercier Riviera Automatic Chronograph 41mm Watch M0A10825
Details
| Vendor | Baume et Mercier |
| Metal | Stainless Steel |
Read more information regarding our Product Disclaimers.
Product Details
The Riviera chronograph 10825, inspired by the 43mm version, joins the collection in a slimmer 41mm format. Its dodecagonal case in polished and satin-finished stainless steel is protected by an anti-reflective sapphire crystal. The black dial with a wave pattern, featuring snailed counters and snailed minute track, highlights the Roman numerals, indexes, and rhodium-plated hands with white Superluminova. It is equipped with an automatic movement with a 48-hour power reserve and water resistance to 10 ATM. The interchangeable stainless-steel bracelet features a reliable system for tool-free changes.





























