THE NEW 5303 COSC HOUSES THE CHRONOMETER-CERTIFIED CALIBER M100. HENCE ITS NAME.

BUT TODAY, WE WISH TO GO FURTHER.

ONCE FULLY ASSEMBLED, OUR GRAND CHRONOMETER WATCHES WILL ENDURE MORE TESTS, RE-CONTROLLING THEIR ACCURACY, POWER RESERVE, AND SHOCK-RESISTANCE TO MAKE SURE THAT THE WATCH THAT REACHES YOUR WRIST IS EVERYTHING WE HAVE TO OFFER.

THERE ARE TWO WAYS OF PREVENTING MAGNETIC FIELDS FROM AFFECTING THE ACCURACY OF A MECHANICAL WATCH.

THE MOST RECENT EVOLUTION OF THE EARLY 2000’S CONSISTS OF MANUFACTURING A BALANCE SPRING MADE OUT OF SILICON.

THE OLD-FASHIONED WAY, MADE POSSIBLE BY TRANSITIONING TO THE THINNER CALIBRE M100, CONSISTS OF BUILDING A SOFT-IRON CAGE AROUND THE MOVEMENT TO REDIRECT MAGNETIC FIELDS.

THIS CAGE, COMPOSED OF THREE PARTS AS DEPICTED ABOVE, IMPROVES THE CURRENT SWISS STANDARD IN MAGNETIC RESISTANCE BY 10 TIMES. UPGRADING THE USUAL 4 800 A/M TO ABOVE 50 000 A/M.

THE FINISH OF THE REFERENCE 5303 COSC CONSTANTLY BLENDS POLISHED AND BRUSHED SURFACES, SHOULD IT BE CIRCULAR, LINEAR OR SUNRAY.

CRAFTSMANSHIP THAT REVEALS ITS CONSTRUCTION AND GIVES LIFE TO ITS PROPORTIONS.

AS ANY TRUE DIVE WATCH SHOULD BE, THE SERICA 5303 COSC  IS EXTREMELY EASY TO READ UNDERWATER THANKS TO ITS LARGE AND LUMINESCENT INDEXES.

THICK LAYERS OF APPLIED SUPER-LUMINOVA GUARANTEE A STRONG AND LONG-LASTING GLOW.