- Limited edition to 1,000 units
- Case made of stainless steel, satinized
- Anthracite electroplated dial with sunburst decoration
- Sapphire crystal glass
- Transparent case back made of sapphire crystal glass
- Pressure-resistant to 20 bar
- Low pressure resistant
In 2016, Sinn Spezialuhren is celebrating its 55-year anniversary - and the 556 Anniversary, limited to 1,000 pieces, marks this special occassion.
With its satinized stainless-steel case and anthracite electroplated dial with sunburst decoration, the 556 Anniversary is an elegant watch for stylish occasions. While the limit of 1,000 pieces is documented by an engraving on the rotor, the dial features a direct reference to the anniversary by displaying the years ‘1961 - 2016’.
Thanks to the transparent sapphire crystal back, the rotor engraving and the delicate mechanical movement can be seen particularly well. Additional features of this watch are its striking lines, minimal dial design and clear readability. The 556 Anniversary is resistant to low pressure and can withstand pressures of up to 20 bar.

Technical details
Self-winding mechanism
25 bearing jewels
28,800 semi-oscillations per hour
Seconds stop function
Shock resistant as per DIN ISO 1413
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
Crown screwable
Meet the technical requirements for waterproofness, as set out in standard DIN 8310
Pressure-resistant up to 20 bar
Low pressure resistant
Band lug width: 20 mm
Case thickness: 11 mm
Weight without strap: 65 gramme
Indices coated with luminescent colour
Hour and minute hand coated with luminescent colour