1. Introducció
This manual provides instructions for the AVI-8 Spitfire Lock Chronograph Pilot Watch, Model AV-4089. This timepiece features a Japanese Meca-Quartz Chronograph movement with date display, housed in a 42mm stainless steel case with a genuine leather strap. It is water resistant to 50 meters.
The design of this watch is inspired by the history of military aviation, specifically paying homage to Eric "Sawn Off" Lock, a notable RAF pilot from WWII.

Image: The AVI-8 Spitfire Lock Chronograph watch with its leather strap, displayed on a dark wooden surface.
2. Components del rellotge
Familiarize yourself with the main components of your AVI-8 Spitfire Lock Chronograph watch.

Image: Diagram illustrating the key components of the Lock Chronograph watch, including the stainless steel case, fixed bezel, mineral lens with anti-reflective coating, 22mm genuine leather strap, Japan Quartz Chronograph movement, pull-out crown, 42mm case diameter, and 50m water resistance.
- Corona: S'utilitza per configurar l'hora i la data.
- Empensors: S'utilitza per fer funcionar les funcions del cronògraf.
- Marca: Displays time, date, and chronograph subdials.
- Mans: Hour, minute, and chronograph hands.
- Corretja: 22mm genuine leather strap with tang buckle.
3. Configuració
3.1 Configuració de l'hora
- Estireu la corona cap a la posició 2.
- Turn the crown to move the hour and minute hands to the desired time.
- Push the crown back to position 1 (normal position).
3.2 Configuració de la data
- Estireu la corona cap a la posició 1.
- Turn the crown clockwise or counter-clockwise to set the correct date.
- Empenyeu la corona cap a la posició normal.
- Nota: Eviteu establir la data entre les 9:00 i les 3:00, ja que això pot interferir amb el mecanisme de canvi de data.

Imatge: Una imatge detallada view of the watch's side, highlighting the crown and chronograph pushers used for setting and operation.
4. Funcionament del cronògraf
The AVI-8 Spitfire Lock Chronograph features a 1/5 second chronograph function.
- Inici del cronògraf: Premeu el polsador superior (A) per iniciar el cronògraf. La maneta dels segons del cronògraf començarà a moure's.
- Stopping the Chronograph: Press the upper pusher (A) again to stop the chronograph. The elapsed time will be indicated by the chronograph hands.
- Reinicialització del cronògraf: After stopping, press the lower pusher (B) to reset the chronograph. All chronograph hands will return to their zero positions.
4.1 Chronograph Subdials
- 60-Minute Counter: Typically located at the 9 o'clock position, this subdial records elapsed minutes up to 60.
- 24-Hour Indicator: Located at the 3 o'clock position, this subdial displays the time in a 24-hour format, synchronized with the main hour hand.
- Small Second Hand: Located at the 6 o'clock position, this subdial displays the continuous running seconds of the watch.

Image: A close-up of the watch face, detailing the chronograph subdials and the main timekeeping hands.
5. Manteniment i cura
5.1 Resistència a l'aigua
Your AVI-8 Spitfire Lock Chronograph watch is water resistant to 50 meters (5 ATM). This means it is suitable for short periods of recreational swimming, but not for diving or prolonged water immersion. Avoid operating the crown or pushers when the watch is wet or submerged to prevent water ingress.
| Valoració | Activitat |
|---|---|
| 30 m (3 ATM) | Splash resistant, rain. |
| 50 m (5 ATM) | Short periods of recreational swimming. |
| 100 m (10 ATM) | Swimming, snorkeling. |
| 200 m (20 ATM) | Scuba diving. |
5.2 Atenció general
- Netegeu el rellotge regularment amb un drap suau i sec.
- Eviteu exposar el rellotge a temperatures extremes o canvis sobtats de temperatura.
- Mantingueu el rellotge allunyat de camps magnètics forts.
- The leather strap should be kept dry and away from direct sunlight to prevent damage and discoloration.
- If the watch crystal becomes dirty, wipe it gently with a soft, lint-free cloth.

Image: The AVI-8 Spitfire Lock Chronograph watch displayed with watch maintenance tools, emphasizing care.
6. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| El rellotge no funciona | Bateria esgotada. | Substituïu la bateria. Poseu-vos en contacte amb un centre de servei autoritzat. |
| La data no canvia a mitjanit | Hora configurada incorrectament (AM/PM). | Avança l'hora 12 hores. |
| Les agulles del cronògraf no es reinicien a zero | Requereix calibratge. | Refer to the movement's specific calibration instructions or contact support. |
| Aigua dins del rellotge | Crown/pushers operated underwater or seals compromised. | Porteu immediatament el rellotge a un centre de servei autoritzat per evitar més danys. |
7. Especificacions
| Característica | Detall |
|---|---|
| Número de model | AV-4089-01 |
| Tipus de moviment | Japanese Meca Quartz Chronograph |
| Material de la caixa | Acer inoxidable |
| Diàmetre de la caixa | 42 mil·límetres |
| Gruix de la caixa | 11 mil·límetres |
| Cristall | Mineral with Anti-Reflective Coating |
| Material de la banda | Cuir genuïna |
| Amplada de banda | 22 mil·límetres |
| Resistència a l'aigua | 50 metres (5 caixers automàtics) |
| Tipus de visualització | Analògic |
| Característiques addicionals | Cronògraf, Visualització de data |
| Pes de l'article | 75 grams |
8. Garantia i Suport
Your AVI-8 watch is covered by a Dos (2) anys de garantia internacional from the date of purchase against any manufacturing defects. This warranty does not cover normal wear and tear, damage caused by improper handling, accidents, or unauthorized repairs.
For warranty claims or technical support, please contact your authorized AVI-8 dealer or visit the official AVI-8 website for service contact information.
Per a més informació, podeu visitar el AVI-8 Store on Amazon.
9. Producte acabatview Vídeo
Vídeo: Un overview of the AVI-8 4089-01 watch, demonstrating its features and design. This video is provided by Watchfort.