The Bombora
The Bombora
Measure your rung size using a Piece of String or Paper
This is the simplest method and only takes a minute:
- Cut a strip of paper or grab a piece of string.
- Wrap it around the base of your finger.
- Mark where the ends meet.
- Lay it flat and measure with a ruler (millimeters are best).
- Compare your measurement to a ring size chart or by entering the measurement below.
[ring-size-calculator]
Since ring sizes vary between countries, use this chart to compare sizes across different systems:
US/Canada | UK/Australia | Europe | Japan | Inside Diameter (mm) |
---|---|---|---|---|
4 | H | 46 | 7 | 14.8 |
4.25 | H 1/2 | 47 | 7.5 | 15.0 |
4.5 | I | 48 | 8 | 15.3 |
4.75 | J | 49 | 8.5 | 15.5 |
5 | J 1/2 | 50 | 9 | 15.7 |
5.25 | K | 50.5 | 9.5 | 16.0 |
5.5 | K 1/2 | 51 | 10 | 16.2 |
5.75 | L | 51.5 | 10.5 | 16.4 |
6 | L 1/2 | 52 | 11 | 16.5 |
6.25 | M | 53 | 11.5 | 16.9 |
6.5 | M 1/2 | 53.5 | 12 | 17.3 |
6.75 | N | 54 | 12.5 | 17.5 |
7 | N 1/2 | 55 | 13 | 17.7 |
7.25 | O | 55.5 | 13.5 | 18.0 |
7.5 | O 1/2 | 56 | 14 | 18.2 |
7.75 | P | 57 | 14.5 | 18.5 |
8 | P 1/2 | 58 | 15 | 18.8 |
8.25 | Q | 58.5 | 15.5 | 19.0 |
8.5 | Q 1/2 | 59 | 16 | 19.3 |
8.75 | R | 60 | 16.5 | 19.5 |
9 | R 1/2 | 61 | 17 | 19.8 |
9.25 | S | 61.5 | 17.5 | 20.1 |
9.5 | S 1/2 | 62 | 18 | 20.3 |
9.75 | T | 63 | 18.5 | 20.6 |
10 | T 1/2 | 64 | 19 | 20.8 |
10.25 | U | 64.5 | 19.5 | 21.1 |
10.5 | U 1/2 | 65 | 20 | 21.3 |
10.75 | V | 66 | 20.5 | 21.6 |
11 | V 1/2 | 67 | 21 | 21.8 |
11.25 | W | 67.5 | 21.5 | 22.1 |
11.5 | W 1/2 | 68 | 22 | 22.3 |
11.75 | X | 69 | 22.5 | 22.6 |
12 | X 1/2 | 70 | 23 | 22.8 |
12.25 | Y | 71 | 23.5 | 23.1 |
12.5 | Y 1/2 | 72 | 24 | 23.3 |
12.75 | Z | 73 | 24.5 | 23.6 |
Measure Your Ring Size
Wrap a piece of string or paper around the base of your finger. Mark where it overlaps, then measure the length in millimetres.
Enter that number below to find your closest US ring size:
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Introducing The Bombora Signet, a ring that captures the raw power of the ocean, inspired by the legendary king waves at Cowaramup Bombora, or Cow Bombie, off the coast of Western Australia. These waves rise suddenly from deep water and crash over the reef, drawing big-wave surfers looking for the ultimate ride.
* A Connection to Culture & Nature
The word "Bombora" comes from Indigenous Australian languages, describing offshore reef formations where waves break over submerged rock or sandbanks. For generations, these spots have been both a source of food and a reminder of the ocean’s strength. The Bombora Signet is a tribute to that connection between land, sea, and the adventurous spirit that calls people to the waves.
* Handcrafted Detail
The breaking wave design is hand-carved into the silver and filled with high-temperature enamel, creating a bold contrast that makes the wave feel alive. The process locks in the depth and movement of the design, giving it a striking, long-lasting finish.
* Built to Last
Made from solid recycled 925 sterling silver, this ring has the wide signet body that’s unique to Sailors & Seekers. The oxidized finish brings out the details, adding a rugged, worn-in look that suits an everyday piece.
* Care Instructions
While tough, enamel does need some care to keep it looking its best.
Keep it away from harsh chemicals like chlorine and cleaning products.
Store it separately from other jewelry to avoid scratches.
Clean gently with a soft cloth. Avoid ultrasonic cleaners or harsh polishing compounds, as they can damage the enamel.
If the enamel ever shows signs of wear, a professional jeweler can restore it.
A Piece of the Ocean, Wherever You Go
The Bombora Signet isn’t just a ring, it’s a reminder of the ocean’s force, the thrill of the unknown, and the deep respect surfers and Indigenous cultures have for these powerful waters. Whether you’ve faced the waves yourself or just feel drawn to the sea, this ring carries that energy with you.
Custom made to your size. Available in Sterling Silver & Gold Plated.
Shipped express from Macedon Ranges, Australia.
