OMEGA - SEAMASTER DIVER 300M CO‑AXIAL MASTER CHRONOMETER - BLACK BLACK - 43.5mm

ANTI-MAGNETIC
The movement is unaffected by exposure to strong magnetic fields, even those greater than 1.5 tesla (15,000 gauss).

AUTOMATIC WATCH
A self-winding watch or automatic watch uses a mechanical movement whose main spring is wound automatically by the natural motion of the wearer's arm.

CERAMIC WATCH
A casebody created from a single block of pressed ceramic, which is first heated in an oven and then three-dimensionally machined. OMEGA's ceramic watch cases are extremely scratch-resistant and shock-resistant.

CHRONOMETER
Label given to a watch which has undergone precision tests and received a certificate from an official body (COSC).

HELIUM ESCAPE VALVE
Decompression system which allows helium to escape from inside the watch when the watch is worn for professional use in pressure chambers. (Long-term underwater work, crude oil exploration, etc.)

MASTER CHRONOMETER CERTIFIED
Guaranteeing the Swiss industry’s highest standard of precision, performance and magnetic-resistance, as set by the Swiss Federal Institute of Metrology (METAS).

SCREW-IN CROWN
Self-locking crown, screwed into the tube of the case, used for highly water resistant divers' watches.

TRANSPARENT CASE BACK
A transparent case back - frequently made of sapphire - makes it possible to see the movement inside the watch.

UNIDIRECTIONAL ROTATING BEZEL
A bezel which turns in only one direction. Particularly useful for divers who cannot accidentally rotate it in the wrong direction, which could cause them to miscalculate their dive times. A rotating bezel makes it easy to measure elapsed time.

TECHNICAL DATA
Between lugs: 21 mm
Bracelet: rubber strap
Case: Black ceramic
Case diameter: 43.5 mm
Dial colour: Black
Crystal: Domed scratch‑resistant sapphire crystal with anti‑reflective treatment on both sides
Water resistance: 30 bar (300 metres / 1000 feet)

All items in original, unworn condition may be returned within seven days of receipt for a full refund to the original payment method, store credit, or exchange. All watches must be returned with all original packaging and paperwork. Returns must be initiated within the seven day return period and shipped promptly thereafter. To do so, simply email info@moment-watch.com and we will provide instructions. Please be aware that any attempt to change the strap or bracelet could result in unintentional damage to the watch case that would make it ineligible for return.

We are proud to fulfill and ship orders around the world via UPS, FedEx, DHL, and USPS. All watch shipments are shipped via insured expedited service. Orders are guaranteed to ship within one business day following approval by our fraud detection system.

Please note that MOMENT is required to declare the retail value of all items in shipments, and that your shipment may be subject to import fees upon arrival in the destination country. Any incurred importation fees or taxes are the responsibility of the customer.