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 WATCH DT100.10.AA.AA.A
Details
| Vendor | Jacob & Co |
| Metal | Stainless Steel |
Read more information regarding our Product Disclaimers.
Product Details
The World Is Yours is inspired by the world and the way it looks. Its design emulates the shape of our planet. The case is rounded, the dial is an ample curve and the sapphire crystal that tops it all is an even wider curve. As a whole, The World Is Yours Dual Time Zone celebrates the third dimension of space.
The World Is Yours Dual Time Zone indicates two time zones, complete with hours and minutes. Each zone can be set down to the minute. It is the only way countries with unusual UTC time offsets, like India, can display both local time and home time accurately. The crown, located on the right side of the case, has three positions. Winding, time setting for the lower time zone, time setting for the upper time zone. It's up to the wearer to choose which one is local time.
At the center of the domed dial lies a small seconds hand. It's shaped like a wind rose, a necessary compass in the middle of a world map. It belongs to both time zones. And it's a reminder of the importance of finding one's bearings in the world.
The World Is Yours houses a fine craft dial. Its surface is widely curved, requiring the hands to be tilted at a 12° angle. It's stamped with a sky view of the western hemisphere. Seas are lacquered blue with highly detailed continents.
The World Is Yours' dial only represents half the world. Its caseback offers a wider, more general view. A large and detailed engraving on the smooth surface features the missing continents. Executed with an advanced laser technology, it completes the global representation.
























