What you might wonder.

The Aviator comes in 36mm, 40mm, and 42mm. For a wrist circumference under 17cm, we recommend the 40mm; over 18cm, the 42mm sits proudly without overhanging. The 36mm is unisex and reads as a smaller, dressier piece. When in doubt, the 40mm is the version we wear ourselves.

Standard straps fit wrists from 14cm to 21cm. Extra-long straps are available on request. Every CHRON. ships with a quick-release pin so you can swap straps without tools.

Yes — every kids' strap has fifteen punch holes, fits ages 4 to 14, and is engineered to be replaced for free if a child outgrows it within two years.

EU orders typically arrive in 2–3 business days. UK and US in 3–5 days. Asia-Pacific and the rest of the world in 5–8 days. Express courier (DHL Express) is available at checkout if you need it sooner.

Shipping is free worldwide on orders over $200, and shipped carbon-neutral by default. Below $200, a flat $12 rate applies.

Unfortunately not — our courier partners require a signature on delivery, which means a physical address. We'd suggest your office or a trusted neighbour.

30 days from delivery, full refund, no questions. The watch must be in its original case, with the protective sticker intact on the caseback. We'll email you a pre-paid return label.

Once we receive and inspect the watch (usually within 48 hours of it landing at the atelier), the refund posts to your original payment method within 5–7 business days.

Two years on the movement and case construction, against any manufacturing defect. The strap is covered for one year against material failure. The warranty doesn't cover accidental damage, water damage outside the rated depth, or wear-and-tear.

No — the warranty is tied to the serial number engraved on the caseback. As long as you have the receipt or the original order email, you're covered.

Every 4–5 years for the Aviator and other mechanical pieces, in line with our caliber's recommended cadence. Quartz movements typically only need a battery swap every 2–3 years.

A full mechanical service is €280 and includes movement disassembly, cleaning, lubrication, regulation, gasket replacement, and a fresh pressure test. Quartz services are €60. Strap replacements within warranty are free.

Email service@chron.watches with your serial number and we'll send you a pre-paid shipping label and a tracking link. Turnaround is typically 3–4 weeks.

Yes for 10 ATM models like the Aviator (cold/lukewarm only — hot water expands gaskets). No for the 5 ATM kids' watches or any quartz piece more than three years past its last service.

Rubber and NATO straps: warm water, a soft brush, mild soap. Leather: a barely-damp cloth and a leather conditioner once a year. Never submerge a leather strap.

Designed for ages 4 to 14. The dial markings teach time in 5-minute increments, with bright primary indicators for hours. The strap has fifteen punch holes to grow with the wrist.

Yes. No bluetooth, no batteries to manage from an app, no companion software. Just hands, a dial, and a winding crown. This is the point.