Sinn - 903 H4 Navigation Moonphase Chronograph Lemania - A41330 - Άνδρες - 2000-2010

Sinn 903 H4 Navigation Moonphase Chronograph Mens Watch

The 903.H4 is a timepiece for pilots, navigators, and commuters, featuring a rotating slide rule on the bezel around the dial that allows for calculations of speed, distance, fuel consumption, ascent and descent rates, and conversions to miles and kilometers. It also includes a moon phase function, allowing you to see the phases of the moon. The design is sophisticated, with the red accents on the slide rule's reference point and the sub-dial hands standing out against the gray dial. Because it uses a discontinued movement, it is highly rare and a coveted model for mechanical watch enthusiasts and collectors.

Movement:Lemania 1883 (Manual winding/17 jewels /21,600 vibrations)
Power reserve: Approximately 40 hours
Magnetic resistance: 4,800 A/m

Function:Hours, minutes, and seconds (small seconds)
Chronograph (30-minute counter, 12-hour counter)
Rotating slide rule
Moon Phase
Pointer date display

Case: Stainless steel
Belt: Stainless steel bracelet
Crystal: Double-sided anti-reflective sapphire crystal
Crown: Screw-down type
Push button: Standard
Case back: Sapphire crystal, screw-down type
Water resistance: 10 ATM

Case size: Diameter 41mm x Thickness 13.2mm
Belt width: 22mm

I would like to talk about Sinn, a company that is respected by all watch authorities worldwide, consistently receives a perfect 6 out of 6 in technical and price-performance evaluations, and stands out as a unique firm in terms of design and creativity.
​The company was founded in 1961 by pilot and flight instructor Helmut Sinn in Frankfurt, Germany. In a short time, the instrumental pilot watches, wristwatches, and cockpit clocks they produced proved themselves through their quality and pricing, helping Sinn establish a significant reputation in the aviation industry.
​In 1994, Sinn sold the company to engineer Lothar Schmidt. Schmidt had designed watches under the Porsche Design umbrella in the 1970s and subsequently served as the Vice President at IWC. During that period, Schmidt was the sole person responsible for the titanium cases introduced to the global market by IWC, as well as the restructuring of the Lange & Söhne brand and factory (also an IWC-affiliated brand at the time).
​Because Sinn operated on a direct-to-consumer sales principle for a long time, its brand awareness among end-users remained relatively low. Although their recent shift toward working with distributors has slowly begun to elevate the brand to its deserved position, in my eyes, it is still far from where it truly belongs.
​Sinn is among the leading brands pioneering engineering and creativity in the watch industry. They have pioneered numerous innovations, such as:
​Ar-Dehumidifying Technology: Using Argon gas to reduce humidity within the watch.
​TEGIMENT Technology: A special process that hardens stainless steel to make it virtually scratch-proof.
​HYDRO Technology: Filling watches with silicone oil to guarantee water resistance and legibility under extreme depths (a solution only possible with quartz movements, as automatic movements cannot function in silicone oil).
​In addition to wristwatches and pilot watches, the company produces cockpit clocks for the aviation industry using Swiss-based movements. Furthermore, Sinn continues to manufacture military watches, police watches, and chronographs for various specialized purposes, increasing its success every passing day.

Box:No
Paper:No

Product Description:

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