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 JACOB & CO. THE WORLD IS YOURS AUTOMATIC DUAL TIME ZONE 43MM
Details
| Vendor | Jacob & Co |
| Metal | Stainless Steel |
Read more information regarding our Product Disclaimers.
Product Details
Indian cinema legend Salman Khan and Jacob & Co. Founder and Chairman Jacob Arabo have been friends since Jacob & Co. decided to establish a strong presence in India. Their bond deepened when Khan learned that The World Is Yours Dual Time Zone was inspired by a watch Jacob’s father gifted him at age 13. It was a symbol of time’s significance, of the importance of realizing your unlimited potential.
Drawing inspiration from this story, they came together to create a special edition of The World Is Yours Dual Time Zone that honours Khan’s own father, legendary cinema writer Salim Khan.
Like its inspiration, it features a double, independent timezone. It's powered by self-winding caliber JCAA11, which allows both sub-dials to be set separately.
Each one shows a different hour and a different minute, allowing to keep up with any timezone, especially the ones with a 15, 30 or 45 minute offset. The most important of them is India's single timezone, set at UTC + 4:30.






























