With its headquarter in Frankfurt am Main, Sinn Spezialuhren was founded in 1961 by a WWII pilot and flight instructor, Helmut Sinn. The company focused on the manufacture of navigation cockpit clocks and pilot chronographs and sold these through direct selling, bypassing retailers. The reputation of good quality at excellent price spread rapidly among pilots and placed Sinn among the desirable brands specializing in tool watches.
Throughout the years, Sinn engineers and watchmakers developed several innovations, such as HYDRO Technology introduced in 1996, which guarantees that diving watches will be completely free of fogging, extreme pressure resistance and great underwater readability. In 1998, Sinn perfects Ar-Dehumidifying Technology by combining it with SINN Special Oil 66-228 to create Temperature Resistance Technology which helps ensure that watches remain functional at temperatures of between −45°C and +80°C.
Another notable Sinn invention is DIAPAL, a technology making use of special combination of materials, resulting in a lubricant-free lever escapement.
2003 was the year when Sinn introduced its TEGIMENT coating technology and in 2012, they announced the TESTAF certification for pilot watches.
Let us walk you through the new Sinn models presented at the 2014 Baselworld.
EZM 9 TESTAF pilot watch
TESTAF is a technical standard for pilot watches developed by the faculty of Aerospace Technology at the Aachen University of Applied Sciences in collaboration with Sinn Specialuhren. For a pilot’s watch to be TESTAF certified, it must satisfy a whole list of stringent requirements: readability in daylight and in darkness, accuracy and power reserve, operability, resistance to shock sudden temperature changes, water and magnetic fields, secure strap fastening, etc. TESTAF is quite a fascinating initiative and it deserves to be presented in more details in an upcoming story. If you’re curios to find out more about it, head over to www.testaf.org (page in German).
As its name shows, EZM 9 TESTAF has successfully passed the above mentioned requirements. Its bead-blasted titanium case is highly scratch resistant, thanks to TEGIMENT, a surface hardening technology developed by Sinn. The watch is measuring 44 mm in width, 12 mm thick and has a lug width of 22 mm. The matte black dial and luminescent coated white indexes offer excellent visibility.
EZM 13 diving chronograph
This piece was designed to be used as a tool by professional divers. It is water resistant to 50 bar (500 m), certified by DNV GL, a German company specialized in technical testing and certification for the energy and maritime industries.
The EZM 13 features an integrated SINN SZ02 chronograph movement (based on Valjoux 7750). Boasting a 60-minute – rather than the standard 30-minute – counter at 6 o’clock, this SZ02 movement enables direct and easy reading of the minutes right through from 0 to 60.
To offer more freedom of movement for the diver’s hand, the crown and the push buttons are placed on the left.
The EZM 13 is 41.5 mm wide and 15 mm thick, with a lug width of 20 mm.
6052 the Frankfurt Financial District Watch with calendar week display
The 6052 is a classic looking chronograph with a little surprise under its (wearer’s) sleeve: a calendar week display – the first special function of its kind to be used in a watch with this display configuration. In addition to the calendar week, the dial also displays the day, date and month. It is powered by Sinn modified Valjoux 7751, the SZ03, with a 60-minute counter replacing the 30-minute counter.
To enable intuitive reading of the calendar week at a glance, the week display is now featured alongside a 60-minute display.
The polished stainless steel case has a diameter of 41.5 mm, 14.5 mm high and a lug width of 22 mm.
Frankfurt Financial District Watch 6099
This year, the Frankfurt Financial District Watch 6000 celebrates its 15th anniversary with the release of the 6099, a 41.5 mm chronograph showing three time zones on a 12-hour basis. The 6099 is powered by the 26 jewel Sellita SW500.
857 UTC TESTAF LH Cargo pilot watch
The TESTAF certified 857 is the result of the collaboration between Sinn and Lufthansa Cargo. A small airplane shaped hand shows a second time zone on a 24-hour basis. Inside the 857 you’ll find an ETA 2893-2 automatic movement, running at 28,800 semi-oscillations per hour.
To mark the use of the Boeing 777F by Lufthansa Cargo, the 857 is limited to 777 pieces.
Limited edition U1000 B (EZM 6) diving chronograph
The mission timer made from German submarine steel is equipped with a matt-blue electroplated dial and white luminous indices and hands. Matching in colour, the watch comes with a blue silicone strap and a grey textile strap as standard.
The classification company DNV GL* has tested the suitability of the watch for professional use. It verifies and certifies the pressure resistance of the U1000 B to a diving depth of 1,000 metres and temperature resistance and functionality in accordance with the European diving device standards.
Like the EZM13, the U1000 B is using the Sinn SZ02 automatic chronograph. The case diameter is 44 mm, height is 18 mm and the lug width is 18 mm.
144 St S Jubilee sports chronograph
Limited to 300 pieces, the 144 St S Jubilee is special edition piece, celebrating the 40th anniversary of the 144 series. It combines several of SINN inventions, such as the TEGIMENT surface hardening and the Ar-Dehumidifying. The black PVD coated case has a diameter of 41 mm, while the watch will sit at 14.5 mm heigh on your wrist. In case you’re into changing straps, the lug width is 20 mm.