Sinn Sinn 103 Sa G Steel - Limited to 500 Pieces
Sinn 103 Sa G – Limited to 500 Pieces
The 103 Sa G is a traditional pilot chronograph with an extraordinary design. Its eye-catching features include the dial in shimmering metallic green, the green bidirectional rotating pilot’s bezel in anodised aluminium and the day and date display, also in green. This colour scheme is applied consistently throughout, providing the timepiece with an aesthetic balance.
Another special feature is the high-quality crystal. Here we use a high-domed sapphire crystal glass with a profile similar to that of traditional acrylic glass. Using specially made grinding tools, the sapphire crystal glass is ground out of a solid blank approximately 5 mm thick with five different curvature radii and is then carefully polished. This complex process offers outstanding benefits, making the sapphire crystal glass highly resistant and maintaining the classic appearance without losing the functional character of the watch.
The 103 Sa G is limited to 500 pieces, which is documented by the ‘Eine von 500’ (‘One of 500’) engraving on the transparent back ring. This timepiece is, of course, resistant to low pressure and waterproof and pressure-resistant up to 20 bar.
25 bearing jewels
28,800 semi-oscillations per hour
Seconds stop function
Anti-magnetic as per DIN 8309
Case made of stainless steel, polished
Sapphire crystal glass in front, anti-reflective on both sides
Transparent case back made of sapphire crystal glass, anti-reflective on the interior
Case back screw-fastened
Meets the technical requirements for waterproofness, as set out in standard DIN 8310
Waterproof and pressure-resistant up to 20 bar
Low pressure resistant
Hours, minutes, subsidiary second
Day of the week display in German language
Pilot’s bezel with luminous key mark
Dimensions and Weight
Case diameter: 41 mm
Band lug width: 20 mm
Case thickness: 16 mm
Weight without strap: 77 grammes
Dial and Hands
Shimmering metallic-green dial
Indices and numbers coated with luminescent colour
Hour, minute and stopwatch second hand coated with luminescent colour
Additional Product Details
Sinn Watches was formed in 1961 by the legendary pilot and flight instructor Helmut Sinn. They began manufacturing flight watches based on his extensive aviation experience, this was primarily based on Mr. Sinn's dissatisfaction with the watches that were available for pilot and navigational purposes at that time. His own designs incorporated the features and functionality that he felt more fit for purpose as an instrument watch. This is a design philosophy that has transcended the company's culture right through to the present day. Sinn is now the world's most eminent manufacturer of high quality, precision, functional and purposeful instrument watches. From the beginning, their emphasis was on creating special purpose instruments that performed under extremely adverse operating conditions such as high speed, high and low pressures and altitudes, intense heat or pressure, extreme cold, high magnetic interference, and submergence in liquids. Sinn are becoming increasingly known for their instrument watches, and are today a force to be reckoned with as they lead the way in instrument watch design. The company changed hands in 1994 when Lothar Schmidt formerly of IWC assumed control and further expanded the boundaries of Sinn’s high tolerance manufacturing expertise. Over the past decade, Sinn has pioneered some innovative new technologies, including oil filled watch chambers to enable operation under extreme pressures, argon gas filled watches to prevent moisture infiltration, impact resistant gear suspensions, and new micro-lubricating techniques. Their timepieces are standard equipment in some of the most dangerous and adverse environments on earth - little surprise their watches are issued to the German military and elite forces. Above all the watches are manufactured and marketed to the world at large. Like the designs and their application areas, the pricing of the Sinn watches is most aggressive, making them available to most people. Due to distribution agreements Sinn watches can only be shipped to the UK and Ireland and certain countries where there is no Sinn agent assigned to that territory. Sinn watches are covered by a two or three year manufacturers warranty depending on the model.