Luminox watches have earned a reputation for toughness, durability and visibility in all light conditions, making them the perfect watch. They are the ultimate in durable, dependable, adventure gear - ideal for the Australian lifestyle. Luminox watches are Trusted and requested by elite forces around the globe. All Luminox watches incorporate a self-powered illumination system. This unique feature based on Swiss technology utilises minute glass encapsulated borosilicate gas. The technology assures the watch owner of unparalleled ability to read time under all conditions, each day, every week, for no less than 25 years!
The Luminox Leatherback SEA Turtle 39mm Watch is a testament to robust design and Swiss precision. Crafted with a durable CARBONOX case and a comfortable PU strap, this timepiece is built to withstand the demands of an active lifestyle. Its distinctive 39mm size makes it a versatile choice, suitable for both men and women seeking reliable performance and clear visibility, day or night, thanks to its self-powered illumination system.
Origin: Swiss Made
Always Visible: Constant glow for up to 25 years
Size of case (diameter): 39 mm
Function: Time Date
Water resistance (meters, feet, ATM): 100 / 330 / 10
Movement: Swiss Quartz
Case material: CARBONOX
Bezel: Uni-directional rotating
Case back: CARBONOX screw on
Crystal glass material: Hardened mineral crystal (550-650 Vickers)
Crown: Double security gasket, crown protected
Strap / bracelet: PU
Lug width: 19 mm
Case height: 12 mm
Weight: 40 g
Metal: Stainless Steel
- In stock, ready to ship
- Backordered, shipping soon
Measure your ring size at home in minutes with our printable ring sizer and conversion chart.
How to measure your ring size
A good fit is snug enough to stay put, loose enough to slide over your knuckle. Print our ring sizer on A4 paper at 100% scale (no "fit to page") and check the 5cm line with a ruler, then choose a method below.
Download printable ring sizerUse a ring you already own
Easiest if you have a ring that fits the finger you're shopping for.
- Place your ring over the printed circles, starting with the smallest.
- Stop when the circle's outline sits just inside the ring's inner edge.
- That circle is your size.
Use the ring sizer strip
No ring to measure? The paper strip works just as well.
- Cut out the strip along the dashed line, then cut the slit.
- Wrap it around the base of your finger, printed side out.
- Feed the narrow end through the slit until it feels snug.
- Read the size where the strip meets the slit.
Between sizes? Choose the larger size.
Best time to measure: at the end of the day, when fingers are warm. Cold fingers read smaller.
Wide band? Bands 6mm and wider fit tighter, so consider going up half a size.
Ring size conversion chart
| AU / UK | US | EU | Inner diameter | Circumference |
|---|---|---|---|---|
| I | 4½ | 48 | 15.3mm | 48.0mm |
| J | 5 | 49 | 15.7mm | 49.3mm |
| K | 5½ | 50 | 16.1mm | 50.6mm |
| L | 6 | 52 | 16.5mm | 51.9mm |
| M | 6½ | 53 | 16.9mm | 53.1mm |
| N | 7 | 54 | 17.3mm | 54.4mm |
| O | 7½ | 56 | 17.7mm | 55.7mm |
| P | 8 | 57 | 18.1mm | 57.0mm |
| Q | 8½ | 58 | 18.5mm | 58.3mm |
| R | 9 | 60 | 18.9mm | 59.5mm |
| S | 9½ | 61 | 19.4mm | 60.8mm |
| T | 10 | 62 | 19.8mm | 62.1mm |
| U | 10½ | 63 | 20.2mm | 63.4mm |
| V | 11 | 65 | 20.6mm | 64.6mm |
The most common women's ring sizes in Australia are N–P (EU 54–57). Sizing can vary slightly between brands, so check the size details on each product page.
Still not sure?
Our team is happy to help you find the right fit. Contact us or read our FAQs. If something doesn't fit, you're covered by our 30-day returns.
SKU: XS.0301.L
FREE Shipping for orders > AUD $99
Australian Delivery:
- Express Shipping - all orders
- AUD $12 for orders < AUD $99
- Delivery: 1-5 Business days
New Zealand Delivery:
- AUD $15 for orders < AUD $99
Delivery tracking is provided for all orders.


