Pre-owned Sinn model 403 EZM (Einsatzzeitmesser) 2 Hydro watch complete with box and accessories. The Sinn EZM features a sealed case filled with silicone oil. The oil is incompressible, and has the same reflectivity index as sapphire glass. This allows for near perfect visibility in a wide array of conditions and viewing angle. And due to the incompressible nature of the oil, the watch has a water resistance rating of 5000 meters. 

The cosmetic and mechanical condition of this watch is good, but the watch should be sent in to a Sinn service center to have the silicone oil refilled if there is intent for diving, as there are some air bubbles due to lack of oil. 

Ref No. : 403 EZM2 Hydro
- Serial No./Year: 3729-/-2001-2005
- Case:
    41mm diameter, 20mm lug width, 11.5mm thickness, 47.5mm Lug-to-lug.
    Stainless Steel
- Crystal: Sapphire
- Movement & Accuracy: 
    Caliber: ETA Cal. 955.652 Super Quartz
    Complications: Quickset Date Indicator 
    Stated Accuracy: +/- 10 sec/year
    Battery Life: 15 Years
- Band: Hirsch Leather & Original Bracelet w/ All Links
- Condition Rank: (A) Very Good Condition. Please See Photos and Condition Rank Guide
- Country of Manufacture: Germany

Condition Rank Guide:
-NOS: Item is in New Old Stock condition (NOS). Shows little to no signs of wear apart from some minor handling wear.
-A+: Item is in Excellent condition. Micro-scratches can be seen on the sides of the case, bezel, and/or bracelet. No pitting/gouges on the case or scratches in the crystal.
-A: Item is in Very Good condition. Minor scratches and scuffs can be seen on the sides of the case, bezel, and/or bracelet. No pitting/gouges on the case or deep scratches on the crystal.
-B: Item is in Good condition. Moderate scratches and scuffs can be seen on the sides of the case, bezel, and/or bracelet. Minor pitting/gouges may be visible on the case. One or less deep scratches may be visible on the crystal. See photos.
-C: Item is in Fair condition. Heavy scratches and scuffs can be seen on sides of the case, bezel, and bracelet. Significant pitting or gouges are visible on the sides of the case and the crystal shows multiple deep scratches
-NR: Item is in Non-Running condition. Item is not functional. For parts or repair only.