Instrument Watches - 556 A

The Elegantly Sporty Watch
 
 
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.

- Case made of stainless steel, satinized
- Sapphire crystal glass
- Transparent case back made of sapphire crystal glass
- Pressure resistant to 20 bar  (= 200 m water depth)
- Low pressure resistant

Technical Data
Model 556 A

Mechanical Movement:
- ETA 2824-2
- Self-winding mechanism
- 25 bearing jewels
- 28,800 semi-oscillations per hour
- Seconds stop function
- Shock resistant as per DIN 8308
- 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
- Water-resistant as per DIN 8310
- Pressure resistant up to 20 bar (= 200 m water depth)
- Low pressure resistant

Functions:
- Hours, minutes, seconds
- Date display

Dial and Hands:
- Matte black dial
- Numbers and indices coated with luminescent colour
- Hour and minute hand coated with luminescent colour

Measurements:
- Case diameter 38,5 mm
- Lug width 20 mm

Guarantee:
- 2 years

Strap:
- Calf Strap
- Rubber Strap
- Bracelet