Serica’s 5303 COSC Collection combines chronometer-certified accuracy with a rotating bezel that tracks dive times and a second time zone. Featuring antimagnetic construction and the thinner caliber M100 movement, this collection comes in Enamel Black, Crystal Blue, and Porcelain White, offering reliability and sleek design for any adventure.
EXPLORE THE FULL Serica 5303 Diving Chronometer RANGE
The Serica 5303 COSC Collection is powered by the chronometer-certified caliber M100, ensuring the highest standard of precision. Whether you're diving or travelling, this collection offers unmatched accuracy in a sleek design, with a luminescent bezel for easy time tracking underwater or across time zones.
The Serica 5303 COSC Collection features chronometer-certified movements, antimagnetic cases, and a rotating bezel for tracking both dive times and second time zones. Built with the thinner caliber M100, these watches offer precision, durability, and style in three striking designs: Enamel Black, Crystal Blue, and Porcelain White.
Serica 5303 Diving Chronometer HIGHLIGHTS
Antimagnetic Protection
Featuring advanced antimagnetic construction, the Serica 5303 COSC watches protect their movement with a soft-iron cage that redirects magnetic fields. This enhances resistance beyond the Swiss standard, achieving over 50,000 A/m to ensure exceptional accuracy even in environments with strong magnetic interference.
Versatile Dive Bezel
The luminescent rotating bezel on the 5303 COSC models offers more than just diving functionality. With its clear, legible scale, it tracks immersion time and can also be used to monitor a second time zone, making these watches ideal for both underwater exploration and global travel adventures.
