The 5D Watches Blog

A sapphire window on the back of a watch sounds like a small design choice. It actually tells you a lot about what the brand thinks its movement is worth showing off.

There is no correct number. There is a number that fits your budget, your wrist rotation, and your patience for storage solutions. Here is how to find yours.

Tudor's original expedition watch is back in two sizes with an in-house chronometer movement. Here is what actually separates the 36mm from the 39mm, and what a pre-owned Ranger should cost you.

A small crown position that saves you from cycling through 24 hours to change a date, and a genuinely easy way to damage your movement if you use it at the wrong time.

Collectors do not talk in reference numbers. They talk in Jumbo, Beast, and Bumblebee. Here is what every major Audemars Piguet nickname actually means.

Breitling built three Top Time B01 chronographs around the Aston Martin DB5's wooden steering wheel, not its badge. A working dealer's read on all three references, the material story, and what they cost.

A deployant clasp folds shut instead of pinning through a hole. A working dealer's explainer on how the mechanism works, why it costs more to make, and what to check before buying a watch that has one.

Patek collectors speak in nicknames almost as often as Rolex collectors do. A working dealer's guide to Jumbo, Tiffany, Grenade, Porthole, and the rest, with the reference each one belongs to and where the name actually came from.

The Section 122 surcharge on Swiss watches expired July 24, 2026 as scheduled. It was replaced, not eliminated, by a 12.5% Section 301 rate. A working dealer's read on the number, why it landed where it did, and what it changes for buyers.

The GMT complication looks simple: a fourth hand and a 24-hour scale. Whether it actually tracks a real second time zone depends on the movement underneath, and most GMT watches on the market get this wrong in one specific way.

The Rolex Submariner 126610LN and the Omega Seamaster Diver 300M are the two most cross-shopped dive watches in the pre-owned market. A working dealer's honest read on specs, movement, price, and which one actually fits you.

TAG Heuer's second collaboration with Team Ikuzawa puts a Japanese racing story on the Carrera Glassbox: reference CBS221M.EB0435, a white Clou de Paris dial, and 150 pieces worldwide.