1. Introduction
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. Watch Components
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.
- Crown: Used for setting time and date.
- Pushers: Used to operate the chronograph functions.
- Dial: Displays time, date, and chronograph subdials.
- Hands: Hour, minute, and chronograph hands.
- Strap: 22mm genuine leather strap with tang buckle.
3. Setup
3.1 Setting the Time
- Pull the crown out to position 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 Setting the Date
- Pull the crown out to position 1.
- Turn the crown clockwise or counter-clockwise to set the correct date.
- Push the crown back to the normal position.
- Note: Avoid setting the date between 9:00 PM and 3:00 AM, as this may interfere with the date change mechanism.
Image: A detailed view of the watch's side, highlighting the crown and chronograph pushers used for setting and operation.
4. Operating the Chronograph
The AVI-8 Spitfire Lock Chronograph features a 1/5 second chronograph function.
- Starting the Chronograph: Press the upper pusher (A) to start the chronograph. The chronograph second hand will begin to move.
- Stopping the Chronograph: Press the upper pusher (A) again to stop the chronograph. The elapsed time will be indicated by the chronograph hands.
- Resetting the Chronograph: 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. Maintenance and Care
5.1 Water Resistance
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.
| Rating | Activity |
|---|---|
| 30m (3 ATM) | Splash resistant, rain. |
| 50m (5 ATM) | Short periods of recreational swimming. |
| 100m (10 ATM) | Swimming, snorkeling. |
| 200m (20 ATM) | Scuba diving. |
5.2 General Care
- Clean your watch regularly with a soft, dry cloth.
- Avoid exposing the watch to extreme temperatures or sudden temperature changes.
- Keep the watch away from strong magnetic fields.
- 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. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Watch not running | Battery depleted. | Replace the battery. Contact an authorized service center. |
| Date not changing at midnight | Time set incorrectly (AM/PM). | Advance the time by 12 hours. |
| Chronograph hands not resetting to zero | Requires calibration. | Refer to the movement's specific calibration instructions or contact support. |
| Water inside the watch | Crown/pushers operated underwater or seals compromised. | Immediately take the watch to an authorized service center to prevent further damage. |
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | AV-4089-01 |
| Movement Type | Japanese Meca Quartz Chronograph |
| Case Material | Stainless Steel |
| Case Diameter | 42 Millimeters |
| Case Thickness | 11 Millimeters |
| Crystal | Mineral with Anti-Reflective Coating |
| Band Material | Genuine Leather |
| Band Width | 22 Millimeters |
| Water Resistance | 50 Meters (5 ATM) |
| Display Type | Analog |
| Additional Features | Chronograph, Date Display |
| Item Weight | 75 Grams |
8. Warranty and Support
Your AVI-8 watch is covered by a Two (2) Year International Warranty 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.
For more information, you may visit the AVI-8 Store on Amazon.
9. Product Overview Video
Video: An overview of the AVI-8 4089-01 watch, demonstrating its features and design. This video is provided by Watchfort.