- Dark blue dial and luminous ivory coating
- Case made of stainless steel, polished / satinised
- Column wheel chronograph, exquisitely decorated
- Hybrid ceramic luminous elements, meticulously attached by hand
- Sapphire crystal glass
- Transparent case back made of sapphire crystal glass
- Bezel with logarithmic scale and slide rule function
- Water-resistant and pressure-resistant up to 20 bar
- Low pressure resistant
Shipping costs, taxes and customs duties
New watch deliveries are free of shipping costs within Germany. For delivery to European Union (EU) Member States, we charge EUR 80.00 and for deliveries to all other countries we charge EUR 120.00 shipping costs. For bracelets and accessories we charge EUR 6.50 within Germany, EUR 30.00 to European Union (EU) Member States and EUR 50.00 to all other countries.
Shipping costs for service and spare parts can be found in the service price list.
For deliveries within the European Union (EU), the VAT rate of the supplier country is charged. Deliveries outside the EU are shipped VAT-free.
For deliveries outside the EU, additional customs duties and fees may apply. Please check the relevant customs regulations with the respective customs authorities.
The 903 series is presented in a version that has been technically completely redesigned. Visually recognisable, the navigation chronograph 903 St B E II is available as a standard model with a dark blue dial and has been elevated to an unparalleled technical level. The functionally designed dial imprints the navigation chronograph in our product range with decades of tradition. For example, the slide rule bezel with logarithmic scale can be used to calculate times, distances or fuel consumption. Of particular note is the use of hybrid ceramic luminous elements in the indices, which are meticulously attached by hand, the number 12 and the hour and minute hands. By integrating the illuminating pigments into the respective hybrid ceramic moulded part, a high concentration of illuminant is achieved, resulting in extreme light intensity and perfect readability in the dark.
However, the redesign of the case of the 903 St B E II in particular once again demonstrates our company's high level of innovation. This case features a silver-electroplated rotating bezel on the which can be smoothly operated from the outer diameter of the watch. The impressive waterproofness of 20 bar testifies to a feat of engineering that has long shaped the SINN brand.
The Tri-Compax arrangement of the silver-electroplated counters completes the classic navigation chronograph's design. The crowning glory of this model is its column wheel chronograph movement, which has a power reserve of at least 60 hours when fully wound. Watch connoisseurs will immediately recognise that the SINN logo as an appliqué is another fine detail of a consistently sophisticated watch.
![](https://www.sinn.de/out/pictures/generated/product/11/640_360_100/sinn_webshop_besonderheiten_903stbeii_k_1440x1296.jpg)
Technical details
Self-winding mechanism
26 bearing jewels
28,800 semi-oscillations per hour
Seconds stop function
Anti-magnetic as per DIN 8309
The information on the mechanical movement corresponds to the current production situation in Frankfurt am Main. Due to technical changes, it may happen in individual cases that stock items of our sales partners deviate from this information.
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
Winding crown screwable
Meet the technical requirements for water-resistance, as set out in standard DIN 8310
Water-resistant and pressure-resistant to 20 bar
Low pressure resistant
Date display
Chronograph
Bezel with logarithmic scale and slide rule function
Band lug width: 22 mm
Case thickness: 14,5 mm
Weight without strap: 84 gramme
Counters and interior bezel electroplated in silver
Number “12” and indices made of hybrid ceramic luminous elements, meticulously attached by hand
Hour and minute hand made of hybrid ceramic luminous elements