556 A

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.

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
Pressure-resistant up to 20 bar
Low pressure resistant
Functions
Hours, minutes, seconds
Date display
Dimensions and Weight
Case diameter: 38,5 mm
Band lug width: 20 mm
Case thickness: 11 mm
Weight without strap: 65 gr
Dial and Hands
Glossy black dial
Indices coated with luminescent colour
Hour and minute hand coated with luminescent colour