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 Breitling Superocean Heritage B01 Chronograph 42mm Watch AB0156361L1A1
Details
| Vendor | Breitling |
| Metal | Stainless Steel |
Read more information regarding our Product Disclaimers.
Product Details
Made to move between the waves and the waterfront. The Superocean Heritage is no ordinary sea watch—it never was. When Breitling first launched it in 1957, it took a different tack from other dive watches of the era. The Ref. 1004 (a sleek time-only piece) and Ref. 807 (the world’s first dedicated dive chronograph) weren’t just about exploring the underwater world—they were about looking good doing it. The spear-and-arrow hands, ceramic rotating bezel, and naturally sleek proportions made it a favourite of stylish adventurers who lived for the sea and the scene.































