Navy SEAL 3550 Series 44mm Watch
This Navy SEAL 3550 watch reimagines one of Luminox's most iconic tactical watches with a slimmer, more ergonomic 44mm design. Inspired by decades of collaboration with the U.S. Navy SEALs, it retains the uncompromising durability and reliability trusted in the field. The lightweight CARBONOX™ case and unidirectional rotating bezel are paired with an integrated black rubber strap for exceptional comfort, while the protected screw-down crown, anti-reflective sapphire crystal and 200m water resistance ensure dependable performance in demanding environments. The black dial features green numerals in Liberator Sans Heavy, the official font of the U.S. Navy, reinforcing its authentic military heritage. Equipped with a Swiss RONDA 515 quartz movement and 16 Luminox Light Technology tubes, it delivers constant visibility in any light condition for up to 25 years.
Details:
- Origin: Swiss Made
- Always Visible: Constant glow for up to 25 years
- Size of case (diameter): 44 mm
- Water resistance (meters, feet, ATM): 200 / 660 / 20
- Movement: Swiss Quartz Ronda 515
- Case material: CARBONOX
- Bezel: CARBONOX unidirectional rotating bezel
- Case back: 316L stainless-steel screwed-on
- Crystal glass material: Sapphire crystal with anti-reflective coating
- Crown: IP black stainless steel screw-down crown with logo
- Strap / bracelet: NBR rubber strap with CARBONOX signature buckle
- Lug width: 24mm
- Case height: 16mm
- Weight: 74g
4 x
$224.75
via
- In stock, ready to ship
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.3567
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