Automatic watch, 40.00 mm, stainless steel, L2.937.4.72.6 Date, self winding mechanical movement beating at 36'000 vibrations per hour, with a monocrystalline silicon balance-spring power reserve up to 52 hours. Water-resistant to 5 bar, scratch-resistant sapphire crystal, with several layers of anti-reflective coating on both sides. Sunray silver dial. Stainless steel bracelet, with double security folding clasp with micro adjustment system.

In 1968, Longines launched the Ultra-Chron Diver, the first dive watch equipped with a high-frequency movement. At the time, Longines had already established itself as a pioneer in high-frequency technology. As early as 1910, the winged hourglass brand created the first high-frequency timekeeping device capable of measuring 1/10th of a second. In 1959, Longines developed the first high-beat movement for a wristwatch, an observatory chronometer that set new records in terms of accuracy. The new Ultra-Chron is inspired by the aesthetic codes and professional diving features of the 1968 model. These chronometer-certified watches are powered by an exclusive Longines calibre equipped with a silicon balance-spring and resistant to magnetic fields.

At Markham Fine Jewelers, we appreciate the opportunity to serve you and we strive to make your experience as convenient, affordable and secure as possible.

Order Processing for Delivery

All orders are processed within one business day. Items we have in stock and ready to ship will be shipped within one business day. “Design Your Own” engagement rings will require up to three days to process and ship. Special order items, custom requests, resized, or engraved items will require additional processing time. Please contact us to inquire about processing times for any specific service.

Shipping Address & Signature

Markham Fine Jewelers will ship your product to the billing address that is associated with your credit card. As a fraud protection measure, we do not normally ship to a different address. An exception can be made only if you contact your credit card company and add the alternate address to your card account. Please understand that if your credit card company does not have your desired shipping address on file, we cannot ship to that address.

Shipments from Markham Fine Jewelers also must be signed for in person. This is for our mutual protection. Please be available to provide the signature yourself. When a third party at your home signs for the package, Markham Fine Jewelers cannot be responsible for claims of lost, missing, or damaged goods. If signing in person is impractical for you, we suggest that you make arrangements with your local FedEx location to pick it up there at your convenience.