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
Measure your wrist
Subtract the case size of the timepiece from your wrist measurement
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Enquire about Baume & Mercier Hampton Automatic 43 x 27mm Watch M0A10732
Details
| Vendor | Baume et Mercier |
| Metal | Stainless Steel |
| Case Diameter |
Product Details
This automatic Baume et Mercier timepiece balances urbane style with excellence in watchmaking. It comes with 21 internal jewels and 38 hours of power reserve. The sleek rectangular stainless steel case is complemented by an opaline and sun satin-finished blue dial.
The sun-satin opaline blue dial is adorned with rhodium-plated, riveted Arabic numerals and hour indexes, as well as a black minute track. The “glaive” hands are also rhodium-plated. The correspondingly rectangular case, with its elegant proportions – 43 x 27.5 mm and 9.95 mm thick – is crafted in polished stainless steel. It is protected by a scratch-resistant domed sapphire crystal. The sapphire crystal case back is fastened by four screws. It may be personalized with an engraving.


































