The Sinn Spezialuhren brand has always stayed true to its roots, ultimately making a name for itself back in the early 1960s with its pilot watches and cockpit clocks. Originally designed for the German Luftwaffe’s Tornado programme in the late 1970s, the Nabo 17 ZM was a cockpit clock with a central minute counter.

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These type of cockpit clocks are still used by the military today in Tornado multirole combat aircraft. They were also used in the F-104 Starfighter, the Breguet Atlantic – a long-range maritime patrol aircraft – and in military helicopters such as the Bölkow Bo 105.

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A special feature of these clocks was the start and reset buttons at the bottom of the case, as well as the easy-to-read orange hands of the chronograph’s central stopwatch display for seconds and minutes.

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The design and style of the Nabo 17 ZM provided the inspiration for model 717. This timepiece also features a central stopwatch display for seconds and minutes in the form of large orange hands, which is created using their time-honoured SINN chronograph movement SZ01.

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The case houses an interior pilot’s bezel, which can be smoothly operated from the outer diameter of the watch. In keeping with its predecessor, the dial is distinguished by its excellent readability – even in the dark or under adverse lighting conditions – thanks to the sapphire crystal glass with antireflective coating on both sides. All in all, and at 45 mm in diameter, the 717 cuts a fine figure.

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Sinn 717

Technical specifications:

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Reference: 717.010

Movement:

·      SINN Movement SZ01

·      Self-winding mechanism

·      28 bearing jewels

·      28,800 semi-oscillations per hour

·      Seconds stop function

·      Anti-magnetic as per DIN 8309

Case:

·      Case made of stainless steel, bead-blasted

·      Sapphire crystal glass in front, anti-reflective on both sides

·      Case back screw-fastened

·      Crown screwable

·      Meet the technical requirements for waterproofness, as set out in standard DIN 8310

·      Waterproof and pressure-resistant to 20 bar

·      Low pressure resistant

Functions:

·      Hours, minutes, subsidiary seconds

·      Chronograph

·      60-minute stop function from the dial centre

·      Date display

·      Interior pilot's bezel with luminous key mark

SINN Technologies:

·      Black Hard Coating on a TEGIMENT Technology basis

·      Ar‑Dehumidifying Technology enhances functional reliability and freedom from fogging

Dimensions and Weight:

·      Case diameter: 45 mm

·      Band lug width: 24 mm

·      Case thickness: 15,3 mm

·      Weight without strap: 114 gramme

Dial and Hands:

·      Matte black dial

·      Numbers and indices coated with luminescent colour

·      Hour, minute, stopwatch minute and stopwatch second hand coated with luminescent colour

Warranty: 3 years

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The price for the Sinn 717 is EUR 4,650 on leather strap and EUR 4,950 on silicone strap.

For more information please visit Sinn Watches Online.