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 Bremont Terra Nova Automatic Jumping Hour 38mm Watch TN38-JH-SS-CC-L-S
Details
| Vendor | Bremont |
| Metal | Stainless Steel |
Read more information regarding our Product Disclaimers.
Product Details
Following the sold-out success of the Terra Nova Jumping Hour Bronze — winner of Trend Watch of the Year 2025 at the WatchPro UK Awards — Bremont's latest Jumping Hour iteration continues the concept in 904L stainless steel. Its 38mm cushion-shaped case, meticulously finished in brushed and polished 904L steel, offers exceptional strength and corrosion resistance while retaining the rugged elegance that defines the Terra Nova collection of field watches.
Powered by the exclusive BC634 Jumping Hour calibre, developed in partnership with Sellita, the watch delivers a sharp, instantaneous jump of the hour disc in under a tenth of a second. The clean, montre à guichet dial displays hours and minutes through crisp linear windows, complemented by a compass-inspired sweeping seconds hand that reinforces Bremont’s enduring connection to exploration and navigation.
Offered with a matching 904L steel bracelet or a brown nubuck strap with cream box stitching, the Terra Nova Jumping Hour in Steel combines contemporary design, mechanical precision, and understated utility.
Compact, distinctive, and engineered for reliability, it stands as a bold continuation of one of Bremont’s most celebrated modern designs.
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