Piet Hein Eek’s starting point for the dial was the iconic ring. To achieve a high level of detail, we use a special cutting method to make the teeth. The ring is a unique design that stands out from the crowd. We promise you, it's something you can't find at any other watch than a LEFF amsterdam watch.

Because we only want to use the absolute best materials, we use 316L stainless steel for the case and the bracelet. This is the most durable type of steel for watches and it does not corrode, rust or stain with water. So, your watch becomes almost unbreakable.

Our S-serie is equipped with sapphire glass. This glass is significantly stronger than any other optic material, which makes it highly resistant to scratching and abrasion. It also won’t melt – if you’re not planning to take a trip to the sun – since its melting temperature is 2030°C.

Our watches come with a Japanese Miyota quartz movement. The original quartz movement was invented in Japan, and the best are still manufactured in Japan. This movement uses an electronic oscillator that is regulated by a quartz crystal to keep time.

The S-series have a screw down crown that ensures when fully tightened the 10ATM water resistancy. The crown holds a lot of fine details made by diamond cutting. We've also added a fun little detail - if you look closely you can see Piet Hein Eek's iconic mark of a face in it. And of course, the crown of your Tube Watch is, just as the rest of your the watch made from 316L steel.