1. Rematadoview
The Omega Seamaster 300M Chronometer Model 2222.80 is a precision Swiss-made automatic timepiece designed for reliability and performance, particularly in aquatic environments. This watch features a robust stainless steel case and bracelet, a scratch-resistant sapphire crystal, and a distinctive blue dial with luminous hands and hour markers for enhanced readability. Its automatic Co-Axial movement ensures accurate timekeeping, while the unidirectional rotating bezel and 300-meter water resistance make it suitable for professional diving. This manual provides essential information for the proper setup, operation, and care of your Omega Seamaster watch.

Figura 1.1: Fronte view of the Omega Seamaster 300M Chronometer Model 2222.80. This image displays the watch's blue dial, luminous hands, date window at the 3 o'clock position, and the blue unidirectional rotating bezel with minute markers.
2. Configuración e enrolamento inicial
2.1 Desembalaxe e inspección
Carefully remove your Omega Seamaster watch from its packaging. Inspect the watch for any visible damage. Ensure all accompanying documents, including the warranty card and instruction manual, are present.

Figura 2.1: The Omega Seamaster watch packaging, including the watch box, international warranty card, and the operating instructions manual.
2.2 Enrolamento manual
Your Omega Seamaster 2222.80 is an automatic mechanical watch. If the watch has stopped, it requires manual winding to initiate movement. To manually wind the watch:
- Desenrosque a coroa en sentido antihorario ata que saia á posición 1.
- Turn the crown clockwise approximately 20-30 times. This will provide sufficient power reserve to start the movement.
- The watch will then continue to wind itself through the motion of your wrist while worn. A full power reserve is approximately 48 hours.
2.3 Axuste da hora e da data
Para axustar a hora e a data no reloxo:
- Axuste da data: Pull the crown out to position 2. Turn the crown either clockwise or counter-clockwise to adjust the date. Avoid setting the date between 9 PM and 3 AM, as this can damage the movement.
- Axuste da hora: Pull the crown out to position 3. The seconds hand will stop. Turn the crown to set the hour and minute hands. To ensure precise time setting, synchronize with a reliable time source.
- Once the time and date are set, push the crown back into position 1 and screw it clockwise firmly against the case to ensure water resistance.
3. Funcionamento
3.1 Bisel xiratorio unidireccional
The Omega Seamaster 2222.80 features a unidirectional rotating bezel, which is a crucial safety feature for divers. It rotates only counter-clockwise to prevent accidental increases in dive time. To use the bezel:
- Aliña o marcador triangular do bisel coa agulla dos minutos ao comezo da túa inmersión ou evento cronometrado.
- The minute hand will then indicate the elapsed time against the bezel's scale.
- The unidirectional rotation ensures that if the bezel is accidentally moved, it will only indicate a shorter elapsed time, thus providing a safety margin for divers.
3.2 Resistencia á auga
Your Omega Seamaster 2222.80 is water resistant to 300 meters (1000 feet). This makes it suitable for professional diving, including scuba diving to a depth of 30 meters for up to 2 hours. To maintain water resistance:
- Always ensure the crown is fully screwed down against the case before exposing the watch to water.
- Non accione a coroa nin os pulsadores (se os leva) mentres o reloxo estea mergullado ou mollado.
- Despois da exposición á auga salgada, enxágüe ben o reloxo con auga limpa e séqueo cun pano suave.
Importante: Water resistance is not a permanent condition and may be affected by aging gaskets or accidental impacts. Regular checks are recommended.
4. Coidados e mantemento
4.1 Limpeza
To clean your Omega Seamaster watch:
- Use un suave, damp cloth to wipe the case and bracelet.
- For more thorough cleaning, especially after swimming in chlorinated or saltwater, use a mild soap solution and a soft brush, ensuring the crown is fully screwed down. Rinse thoroughly with fresh water afterwards.
- Dry the watch completely with a soft, lint-free cloth.
4.2 Intervalos de mantemento
Like any precision instrument, your Omega automatic watch requires periodic servicing to ensure optimal performance and longevity. It is recommended to have your watch serviced by an authorized Omega service center every 5-7 years. This service typically includes:
- Complete disassembly, cleaning, and lubrication of the movement.
- Replacement of worn components.
- Restoration of water resistance (replacement of gaskets).
- Case and bracelet cleaning and refinishing.
4.3 Precaucións xerais
- Evita expoñer o reloxo a temperaturas extremas (superiores a 60 °C / 140 °F ou inferiores a 0 °C / 32 °F) ou a cambios bruscos de temperatura.
- Keep the watch away from strong magnetic fields, which can affect the accuracy of the mechanical movement.
- Protect your watch from impacts and shocks.

Figura 4.1: Traseira view of the Omega Seamaster 300M Chronometer Model 2222.80, highlighting the engraved Seamaster hippocampus logo on the stainless steel case back.
5 Solución de problemas
If you encounter issues with your Omega Seamaster, consider the following common solutions before seeking professional service:
| Problema | Causa posible | Solución |
|---|---|---|
| O reloxo parou ou funciona de forma imprecisa. | Reserva de marcha insuficiente. | Manually wind the watch by turning the crown clockwise 20-30 times (after unscrewing it to position 1). Wear the watch regularly to keep it wound. |
| A data non cambia á medianoite. | Time is set to AM instead of PM, or vice-versa. | Adianta a hora 12 horas. Asegúrate de que a data cambie arredor da medianoite, non do mediodía. |
| Condensación baixo o cristal. | Loss of water resistance or extreme temperature change. | Immediately take the watch to an authorized Omega service center. Do not attempt to dry it yourself. |
| A coroa non se pode aparafusar. | Cross-threaded or debris in the threads. | Do not force it. Gently try to align and screw down. If resistance persists, seek professional assistance to avoid damage and maintain water resistance. |
6. Especificacións técnicas
| Característica | Detalle |
|---|---|
| Número de modelo | 2222.80 |
| Tipo de movemento | Swiss Automatic Co-Axial Chronometer |
| Reserva de enerxía | Aproximadamente 48 horas |
| Material do caso | Brushed and Polished Stainless Steel |
| Diámetro da caixa | 36.25 mm |
| Espesor da caixa | 12 mm |
| Cristal | Scratch-resistant Sapphire |
| Cor do dial | Blue, textured with luminous hands and markers |
| Bisel | Blue Unidirectional Rotating Bezel |
| Material da pulseira | Aceiro inoxidable |
| Ancho de banda | 18 mm |
| Tipo de broche | Broche de despregamento |
| Resistencia á auga | 300 metros (1000 pés) |
| Funcións | Horas, minutos, segundos, data |
| Peso do elemento | 145 gramos |
| UPC | 722630971092 |

Figura 6.1: General watch size guide. The Omega Seamaster 2222.80 has a case diameter of 36.25mm, falling within the 34-36mm range shown.
7. Garantía e soporte
7.1 Información da garantía
Your Omega Seamaster 300M Chronometer is covered by an international warranty. The warranty card, included with your watch, contains specific details regarding the coverage period and terms. Please retain this card and your proof of purchase for any warranty claims. The warranty typically covers manufacturing defects but does not cover normal wear and tear, accidental damage, or damage resulting from improper use or unauthorized repairs.
7.2 Atención ao cliente
For any questions, service requests, or technical assistance, please contact an authorized Omega boutique or service center. You can find a list of authorized service providers on the official Omega website. Always ensure that any service or repair work is carried out by certified Omega technicians to preserve the integrity and warranty of your timepiece.