Watch Sizing Guide
Choosing the right case size makes the difference between a watch you wear every day and one that sits in a drawer. This guide walks you through measuring your wrist, understanding what each ORA case size looks like in practice, and matching a size to your personal style.
Step 1: Measure Your Wrist
You don't need any special tools — a soft measuring tape or a strip of paper and a ruler will do.
- Wrap the tape snugly (not tight) around your wrist, just below the wrist bone, where you'd normally wear a watch.
- Note the measurement in centimetres.
- If you're between sizes, or prefer a looser, more relaxed fit, round up. For a snugger, more tailored fit, round down.
No tape measure handy? Wrap a strip of paper around your wrist, mark where it overlaps, then measure the length with a ruler.
Most ORA bracelets are adjustable within a 14.5cm–22cm range, so small variations in wrist size are easy to accommodate — see the product description for the exact fit range of each piece.
Step 2: Understand ORA's Case Sizes
| Case size | Best for | Feel on the wrist |
|---|---|---|
| 26mm–28mm | Petite wrists (13.5–15.5cm) | Delicate, refined, closer to vintage ladies' proportions |
| 31mm | Small to average wrists (14.5–17cm) | Classic, balanced, the most traditional ladies' proportion |
| 33mm–34mm | Average wrists (15–18cm) | Slightly bolder while staying elegant; a versatile everyday size |
| 36mm | Average to larger wrists, or anyone who prefers a more substantial watch | Confident, contemporary, works equally well as a unisex size |
| 38mm–41mm | Larger wrists, or a deliberately oversized, statement look | Bold, architectural, popular for those who like their watch to make an impression |
Step 3: Match Size to Style
If you like a subtle, everyday piece: go with 28mm–31mm. This is the classic ladies' proportion — understated enough for the office, elegant enough for evening.
If you want something that reads confidently from across the room: 34mm–36mm is the sweet spot. It's substantial without tipping into oversized, and it's the most popular range across our Datejust-style and Royal Oak-style collections.
If you're drawn to a bold, statement watch — or you're buying a unisex piece: our 36mm–41mm Oyster Perpetual-style and dual-size Santos-style and Ballon Bleu-style pieces give you that larger presence while keeping the same hand-assembled quality.
A Few Extra Fit Notes
- Bracelet adjustability: nearly all our bracelets can be sized down at home by removing links, or by any local jeweller/watch shop for a small fee.
- Between two sizes? Many of our Datejust-style pieces come in two case sizes (e.g. 31mm/36mm) specifically so you can pick the one that suits you — check each product page for the size options.
- Still unsure? Reach out via our live chat and we're happy to help you pick a size based on your wrist measurement and the look you're going for.
Every ORA watch is hand-assembled in Canada using Seiko automatic movements, sapphire crystal glass, and 5 ATM water resistance — regardless of case size.