Citizen Promaster Marine Men's Watch 40.55mm
Citizen Promaster Marine Men's Watch 40.55mm
Citizen Promaster Marine Men's Watch 40.55mm
Citizen Promaster Marine Men's Watch 40.55mm
Citizen Promaster Marine Men's Watch 40.55mm

Promaster Marine Men's Watch 40.55mm

The Citizen Promaster Dive BN0268-01E combines professional dive performance with bold, eye-catching style. Featuring a sleek black dial and matching unidirectional bezel, this ISO-certified dive w...

The Citizen Promaster Dive BN0268-01E combines professional dive performance with bold, eye-catching style. Featuring a sleek black dial and matching unidirectional bezel, this ISO-certified dive watch is elevated by a striking orange strap that pays tribute to the vibrant colours of the underwater world. Crafted from durable stainless steel, the versatile 40.6mm case offers exceptional comfort and rugged reliability for every adventure. Large luminous hands and markers provide outstanding visibility in low-light conditions, while a practical date display delivers everyday functionality. Powered by Citizen's renowned Eco-Drive technology, the BN0268-01E harnesses energy from any light source, eliminating the need for battery replacements. A scratch-resistant sapphire crystal with anti-reflective coating enhances clarity and durability, while 200 metres of water resistance and a secure screw-down crown ensure dependable performance both above and below the surface. Finished with a bold orange biomass polyurethane strap designed for flexibility, comfort, and durability, this Promaster Dive model offers a distinctive look that stands out wherever your adventures take you. Combining professional capability with sustainable innovation, it's a dive watch built for explorers.

4 x $199.75 via Afterpay


  • In stock, ready to ship
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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: BN0268-01E

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