Strap Size Guide
Strap Size Guide
Compatible with Swatch × AP Royal Pop 40mm • Read before ordering.
How to measure your wrist

Wrap a tape measure snugly around your wrist, just below the wrist bone.
No tape? Wrap a string, mark it, lay flat and measure with a ruler.
Silicone Strap
Adjustable — 5 holes, 10mm apart • Range: 14–20 cm
✕
< 14 cm
Too loose
≈
14–16 cm
Snug fit
✓
16–20 cm
Ideal fit
✕
> 20 cm
Too short
⚠ Not suitable for wrists under 14 cm or over 20 cm
Bioceramic Strap
Deployant clasp — no holes, micro-adjust • Range: 15–19 cm
✕
< 15 cm
Too loose
✓
15–19 cm
Ideal fit
✕
> 19 cm
Too tight
⚠ Not suitable for wrists under 15 cm or over 19 cm
Wrist at the limit or any doubt? Contact us before ordering.
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