The Sinn 613 Collection is a family of reliable diver's watches that expands the brand's impressive existing diver watch portfolio. Sinn historically puts its timepieces through rigorous testing to verify their dependability and the 613 series lives up to this standard. Each watch is waterproof to European diving equipment standards, so a diver can be sure of an excellent performance up to 500m diving depth (50 bar). The Sinn 613 watches stand out for their robustness, functionality and precision that captivate both divers and watch enthusiasts alike. 

Core Features of the Sinn 613 Collection:

• The cases on the 613 models are made from bead-blasted stainless steel. 
• Each model in the collection features a captive diver's bezel with minute ratcheting and a luminous key mark.
• All of the Sinn 613 watches are waterproof and pressure-resistant to 500 metres diving depth (50 bar). Each watch meets the requirements for waterproofness, as set out in standard DIN 8310 and is tested based on European diving equipment standards EN250/EN14143. The watches are also resistant to low pressure. 
• The push-pieces in the 613 watches feature a D3-System. 
• The waterproofing is further improved by the screw-fastened case back and screwable crown. 
• The 613 models feature a sapphire crystal which has been coated with an anti-reflective treatment on both sides. 
• All of the Sinn 613 watches have Ar-Dehumidifying Technology which enhances functional readability and freedom from fogging. 

Model Specifications 613.013 H-LINK:

• This model exhibits a matte black dial with a date aperture at 3 o'clock and a 60-minute stopwatch display at 6 o'clock. 
• The dial also features luminescent baton indices, luminescent hour, minute and second hands, and an inner circle of small Arabic numerals. These numerals allow for the reading of a second time zone on a 24-hour basis. 
• The watch has a 41mm case diameter, a 20mm band lug width, and a 15mm thickness. The watch weighs 98 grams without a strap. 
• This model has magnetic field protection up to 100mT (80,000 A/m).
• An SW 535 self-winding mechanism powers the watch. It uses 23 bearing jewels and 28,800 semi-oscillations per hour to power the watch. The movement has a seconds stop function and is anti-magnetic as per DIN 8309. 
• The watch is finished with a bead-blasted solid stainless steel H-link bracelet that fastens with a deployment clasp.