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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Enquire about Breitling Chronomat Automatic GMT 40mm Watch A32398101C1A1
Details
| Vendor | Breitling |
| Metal | Stainless Steel |
| Case Diameter |
Product Details
The Chronomat Automatic GMT 40 is Breitling’s tribute to travel, not only for its dual time zone display but also because of its easygoing aesthetics. Subtle dial colours combined with an all-steel case and bracelet, work with any wardrobe. Meanwhile, the tone-on-time 24-hour scale lets the red GMT hand speak for itself.
The Breitling Calibre 32 powers the GMT complication. Its 24-hour scale lets the user track a second-time zone and know at a glance whether it's day or night, while the “onion” crow (a classic Chronomat feature named for its fluted-dome shape) allowed for easy adjustments. As an all-purpose sports watch, meant to cross over between Breitling’s air, land and sea universes, the GMT 40 has an impressive 200m water resistance.
Known as “a watch for every pursuit,” the Breitling Chronomat mission is truer now than ever because of the GMT 40’s practical size and understated style. Sturdy enough for the gym, yet smart enough for black tie: If there’s one watch to travel with, this is it.

































