SINN has diving watches independently tested and certified

Certification of water resistance, pressure resistance and functional safety in accordance with European diving equipment standards

We attach great importance to ensuring that information about our watches is verifiable. With this in mind, our company has its diving watches tested and certified according to various criteria: While one test procedure focuses on water resistance and pressure resistance, a second procedure is concerned with something that has never been done before in the watch industry: certification in accordance with European diving equipment standards!

The background: time plays an important role in survival on every dive. Diving watches must therefore be water-resistant, reliable and robust and guarantee perfect readability in all light and water conditions. In addition: For us, the certifications are a matter of course and the fulfilment of a quality promise. Our specifications for diving watches are therefore not only expressed in words, but also proven by deeds.

Testing for water resistance and pressure resistance

We have been having our diving watches tested for water resistance and pressure resistance for years. In accordance with the certification standards, the 206 ARKTIS II and 206 St Ar models are pressure-resistant up to 30 bar, the T50, T50 GBDR, U50 S L, U50 DS, EZM 3, EZM 13.1, EZM 13 and the U50 model series are pressure-resistant up to 50 bar, the T1, U1, U1 S, U212 and U1000 model series are pressure-resistant up to 100 bar, and the T2, U2 and U200 model series are pressure-resistant up to 200 bar. The U50 HYDRO, UX (EZM 2B) and UX GSG 9 (EZM 2B) model series are even water-resistant and pressure-resistant to a diving depth of 5,000 metres (= 500 bar). The tests are repeated at regular intervals on all series of these watches in order to document the consistency of quality time and time again.

Premiere: certification in accordance with European diving equipment standards

Is it possible to demand the same from a diving watch in a test procedure as from a breathing apparatus, for example? To answer this question, we were the first company ever to have diving watches recognised as diving equipment and tested accordingly as part of an official certification process. This inspection in accordance with the European diving equipment standards EN250 and EN14143 was completely new territory. This is because the standards relate to diving equipment and therefore cannot simply be applied one-to-one to watches. They were therefore adapted and two test series defined accordingly. In the first test, the timepieces are stored for three hours at - 20 °C, followed by a further three hours at + 50 °C.

The watches are then checked for accuracy and functional reliability at both temperatures. In a second test, the watches have to withstand three hours at - 30 °C and three hours at + 70 °C and 95 % humidity. The result: temperature resistance and flawless function were established for the tested watches after both test runs and certification was granted. The U50 HYDRO and UX model series are subjected to an adapted test down to - 20 °C and + 60 °C respectively due to their battery operation and oil filling.

Certificates from DNV for the U1 and U50 regarding successful certification for pressure resistance and in accordance with the European diving equipment standards EN250 and EN14143. We show these two certificates here on behalf of the certified model series 206, T1, T2, T50, U2, U200, U212, UX, UX GSG9, U1000, EZM 3, EZM 13.1 and the EZM 13.