Striking form, sparse dial design, superior readability – characteristic SINN features which highlight the similarities between the 556 series and our pilot and navigation cockpit clocks.

The accentuation of the hours, minutes, seconds and the date plus the satinized stainless steel case are what give the watches their sporty yet elegant appearance. The crystal of the 556 watches is made from sapphire crystal, as is the transparent back which provides an intriguing insight into the filigree mechanical movement inside.

The model 556 A RS has a special feature: The red second hand is in a harmonious contrast to the black of the dial and the white of the indices.

Case made of stainless steel, satinized
Red second hand
Sapphire crystal glass
Transparent case back made of sapphire crystal glass
Waterproof and pressure-resistant to 20 bar
Low pressure resistant
Model number 556.0141

Mechanical Movement

SW200-1
Self-winding mechanism
26 bearing jewels
28,800 semi-oscillations per hour
Seconds stop function
Anti-magnetic as per DIN 8309

Case

Case made of stainless steel, satinized
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
Waterproof and pressure-resistant to 20 bar
Low pressure resistant

Functions

Hours, minutes, seconds
Date display

Dimensions and Weight

Case diameter: 38,5mm
Band lug width: 20mm
Case thickness: 11mm
Weight without strap: 65g

Dial and Hands

Glossy black dial
Indices coated with luminescent colour
Hour and minute hand coated with luminescent colour

Warranty

Warranty period 2 years

About Sinn

Sinn Watches was founded in 1961 and has long been a big name in horology. The brand was originally focused on producing navigation clocks for cockpits, and this design is reflected in their collection of pilot watches decades later. Sinn promises uncompromising functionality in their watch collections, even in the most demanding conditions. Thanks to industry leading technologies such as Ar-Dehumidifying and antimagnetic construction, Tegiment steel hardening and temperature stabilized movements. It’s not surprising then, that Sinn is praised for their high-quality movements and materials and loved by collectors for their accuracy in extremely adverse conditions.

Sinn 556

Sinn 556 A RS Automatic Sports Watch - Black Dial - Solid Bracelet

Sinn 556 I RS Automatic Sports Watch - Black Dial - Solid Bracelet