The Sinn 903 St II Navigation Chronograph 903.090 is a tremendous chronograph with the impeccable Sinn quality, design and finishing level. 

The watch has all the basics right, such as 200m water resistance, scratch-resistant sapphire glass with an AR coating, a very comfortable steel fine link bracelet and a solid LJP L110 mechanical (automatic) chronograph movement, which boasts 60 hours of power reserve, that is visible through the display caseback window.But it goes beyond that with DIN 8309 anti-magnetism, bezel with logarithmic scale and slide rule function and just a simply stunning vintage design.

• Serious Service
• Warranty

• *Authorised dealer of Sinn watches
  *Sinn watches can only be shipped to the Netherlands and Belgium
  *100% brand new and unworn
  *Complete with the beautiful box and stamped warranty booklet
  *Free worldwide shipping with DHL, FedEx and UPS
  *Tens of thousands of satisfied customers

• We're an authorised dealer of all of our brands, unless otherwise noted. In this day and age there are also many 'grey market dealers' that compromise. What are the main benefits of buying from an authorised dealer with regard to the warranty?

  2 year warranty

  We offer a 2 year warranty on all watches. This covers all mechanical malfunction arising from parts failure and/or assembly errors. Excluded are parts that by their nature may not last 2 years, like batteries and leather straps, damage/problems caused by improper use and wear and tear. We stand behind the brands that we sell and the quality that they offer.
  Some of our brands also offer an international warranty, which will also apply.

  Service and parts

  In the unfortunate event of a problem with your watch, you simply need to send it to us (or take it to another dealer if the brand offers an international warranty). We have access to the official service centers, where only original parts are used and the watchmakers are qualified and experienced with your type of watch. Not every watch movement is the same, so it's best if it's handled by people who know what they are doing.
  After your 2 years warranty has expired we are able to offer service in most cases.

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