The Classima 10853 is distinctive for its round 40 mm case in polished steel. Its crown and open case back in sapphire crystal complete the understated look. Its silvery opaline sun-satin dial features a barleycorn pattern, showcasing 4N gold-tone Roman numerals and indexes, as well as 4N gold-tone leaf hands. A date aperture at 3 o’clock rounds out the dial. Powered by a self-winding movement (Sellita SW200), it offers a 38-hour power reserve and is water-resistant to 5 ATM. Its interchangeable strap in dark brown alligator-patterned calfskin features a reliable spring bar system that allows it to be changed without the use of tools.
Origin: Switzerland
Water Resistance: 50m
Movement Type: Automatic
Power Reserve: 38 hours
Watch Function: Time, Date
Case Shape: Round
Case Size: 40mm
Case Thickness: 9mm
Case back: Sapphire crystal case back, With screw
Dial Colour & Finish: Silvery, Satin-finish
Strap Material: Calfskin
Buckle: Ardillon buckle, Poli finishes
- Low stock - 2 items left
- 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: M0A10853
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