Luminox Leatherback SEA Turtle 0301 black watch with white indices and red second hand
Luminox Leatherback SEA Turtle watch with black strap and luminous green and orange markers.
Luminox Leatherback SEA Turtle 0301 black watch with rubber strap and date display
Man wearing a Luminox Leatherback SEA Turtle watch and holding a canvas bag.

Leatherback SEA Turtle 39mm Watch

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 gea...

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

Size
Colour
Material

4 x $174.75 via Afterpay


  • In stock, ready to ship
  • Backordered, shipping soon
Size chart
Jewellery Boutique
Find your perfect fit

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 sizer
Method 1

Use a ring you already own

Easiest if you have a ring that fits the finger you're shopping for.

  1. Place your ring over the printed circles, starting with the smallest.
  2. Stop when the circle's outline sits just inside the ring's inner edge.
  3. That circle is your size.
Method 2

Use the ring sizer strip

No ring to measure? The paper strip works just as well.

  1. Cut out the strip along the dashed line, then cut the slit.
  2. Wrap it around the base of your finger, printed side out.
  3. Feed the narrow end through the slit until it feels snug.
  4. Read the size where the strip meets the slit.
READ YOUR SIZE HERE › Jewellery Boutique Feed this end through the slit → cut 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
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- Delivery: 1-5 Business days

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Luminox

Founded in 1989, Luminox set out to offer cutting-edge luminescence and readability in high-performance sports watches. As the original self-powered luminous watch brand, it became the watch of choice for U.S. Navy SEALs, F-117 Nighthawk stealth jet pilots, other elite forces and professional divers, and has worked with Special Military Forces, the U.S. Air Force and law enforcement groups worldwide. Tough, powerful and accurate, Luminox is Swiss Made gear built for serious athletes, rugged outdoorsmen and other peak performers. Luminox is also the Official Timing Partner of the Luminox Red Bull Ampol Racing Series.