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 Bell & Ross BR 03-94 Blacktrack
Details
| Vendor | Bell & Ross |
| Metal | Ceramic |
| Case Diameter |
Product Details
A joint venture, the new BR 03-94 BLACKTRACK chronograph from Bell & Ross pairs perfectly with the new Blacktrack BT-06 motorcycle, co-imagined by designer Sacha Lakic and Bell & Ross. More than just a collaboration, it's the extension of a unique machine into a new Bell & Ross instrument watch. Performance dressed in an ultragraphic fairing.
For its new instrument watch, Bell & Ross returns to its love for motorcycles and continues with an exploration of dynamic shapes. Inspired by the avant-garde lines of stealth aircraft, the new BR 03-94 BLACKTRACK chronograph watch is the perfect match for the Blacktrack BT-06 motorcycle, created jointly by Sacha Lakic and the watch brand's designers.
This is a limited edition model with only 500 pieces produced worldwide.



































