Annual Calendar Chronograph 5960 Stainless Steel / Black
|Material: ||Stainless steel|
|Diameter: ||40.50 mm|
|Height: ||13.50 mm|
|W/R: ||30.00 m|
|Indexes: ||Stick / Dot|
The CH 28-520 IRM QA 24H was Patek's first in-house selfwinding chronograph movement.
|Caliber:||CH 28-520 IRM QA 24H|
|Time:||Day / Night Indication, Hours, Minutes|
|Date:||Annual Calendar, Date, Day, Month|
|Chronograph:||Chronograph, Column wheel, Flyback|
|Additionals:||Power Reserve Indicator|
Introduced in 2014, the 5960/1A features a stainless steel case and a matching flush-fit bracelet - a remarkable change compared to the precious metals previously offered in the 5960 collection. The 5960/1A-010 was added to the line-up in 2017 and has a matte black dial.