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 |

Cut out the length chart
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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 42mm Watch M0A10702
Details
| Vendor | Baume et Mercier |
| Metal | Stainless Steel |
| Case Diameter |
Product Details
Driven by the prestigious Baumatic manufacture calibre, the Baume et Mercier Riviera 10702 is the all-road Swiss watch by excellence. Its transparent smokey grey sapphire dial, its interchangeable metal bracelet and open caseback complete the sporty look of this Swiss made timepiece.
The 2022 version of the Baume et Mercier Riviera Baumatic is available in a version with a smoky gray sapphire dial and an integrated steel strap. The decoration introduced in 2021 has become the distinctive mark of these models, each of which is equipped with a Baumatic manufacture movement. Its transparency offers a view of the gear trains of the Baumatic caliber and its tried-and-true performance. Not only technically flawless, it seeks to address the expectations of its future owners, seeking excellence, style, comfort and overall cohesion. It embodies the Maison’s vision of men’s watchmaking.


































