Watch bezel: functions and types simply explained

Bezels not only look chic on watches, but they also have very special functions. In the case of the diver's watch, the bezel used to be of vital importance! This article is about what a bezel is and what functions and special features the bezels of the different watch types have. What is the [...]

Supersport – Co-Creation

THANK YOU FOR OVER 4.500 VOTES IN THE CO-CREATION OF THE NEW CIRCULA SUPERSPORT WHAT IS THE NEW CIRCULA SUPERSPORT? As a 3rd generation family business, we stand for high-quality mechanical watches with an authentic retro design. In that line, the new SuperSport will be a Super-Compressor diving [...]

Sellita SW200-1: A top class Swiss movement

Just like the Japanese Miyota 9015, the Swiss Sellita SW200-1 is also a popular alternative for the now very rare ETA 2824-2 movement. ETA, a subsidiary of the Swatch Group, announced in 2003 in consultation with the Swiss Competition Commission WeKo that in future only its own Swatch Group brands and smaller manufacturers would [...]

Super-Compressor-Watch – Renaissance of an almost forgotten technology

A diver's watch that looks sporty, is waterproof up to 180 m and becomes better sealed the deeper you dive? That sounded utopian a good 70 years ago! But such watches actually existed back then. We are talking about so-called super-compressor watches, which were very popular from the 50s to 70s and are still [...]

Super-LumiNova®… and the watch glows!

Watches that glow in the dark are not only practical, they used to be e.g. a vital aid for divers. Even today, luminous hands and indices are still essential features of diving watches like the Circula AquaSport. In contrast to the radioactive and permanently luminous substances that were still used until a few years ago, nowadays [...]

ISO 6425 or DIN 8306: What must a diver’s watch be able to do?

Not every watch that looks like a diver's watch can really be used for diving. A watch that looks like a diver's watch but is only splash-proof should definitely stay above the surface of the water. Above all, it is important that the watch can withstand the water pressure of the desired diving depth. [...]

The hand-wound watch: perfect for watch lovers and purists

Hand-wound watches are becoming increasingly popular and - just like automatic watches - are a lifetime companion. This article deals with the special features and advantages of hand-wound watches, how to wind and set a hand-wound watch correctly and what causes there are if the watch stops. Advantages [...]

Miyota 9015 and Circula: Japanese premium movement meets German watchmaking

The heart of every watch is the movement. There are three different types: automatic movements, hand-wound and quartz movements. Our Circula watches are available with all three types of movement. In this article, we would like to take a closer look at a premium automatic movement for classic three-hand watches, the Miyota 9015, from [...]

5 ATM & Co: What does this mean on a watch?

ATM stands for physical atmosphere and was the unit for pressure in Germany and Austria until 1977. The SI-compliant unit for pressure has been the bar since 01/01/1978. 1 ATM corresponds to 1.01325 bar. ATM was derived from the mean air pressure that prevails at sea level and corresponds to the value 1 ATM. [...]

The mechanical watch: types, functions, care and history

Today’s mechanical wristwatches mostly use movements, or calibers, with automatic or manual wind. Electric motors or magnets are only rarely used. But who invented the mechanical watch? And how do mechanical watches work? This and other questions are answered in this article... Who invented the mechanical watch? In the [...]