Introduction
Thank you for choosing the Zeppelin Men's Automatic Watch Model 9668-3. This timepiece combines classic design with reliable automatic movement, offering precision and elegance. This manual provides essential information for the proper setup, operation, and maintenance of your watch to ensure its longevity and optimal performance.
Please read these instructions carefully before using your watch and keep them for future reference.
Setup
1. Initial Winding
Your Zeppelin watch is equipped with an automatic mechanical movement. If the watch has stopped or has not been worn for a period, it requires initial winding to build up its power reserve.
- Ensure the crown is in position 1 (fully pushed in, against the case).
- Rotate the crown clockwise approximately 30-40 times. This will initiate the movement and build a sufficient power reserve.
- The watch will then continue to wind itself through the natural motion of your wrist while worn.
2. Setting the Time
- Pull the crown out to position 3 (the outermost position). The second hand will stop.
- Rotate the crown to set the hour and minute hands to the correct time. To avoid confusion between AM and PM for the date change, advance the hands past 12 o'clock. If the date changes, you are in the AM hours.
- Once the correct time is set, push the crown back into position 1 (fully pushed in) to restart the movement.
3. Setting the Date
Your watch features a date display. To set the date:
- Pull the crown out to position 2 (the first click). The second hand will continue to run.
- Rotate the crown counter-clockwise to adjust the date.
- Important: Do not set the date between 9:00 PM and 3:00 AM, as this can damage the movement's date mechanism. If you need to set the date during this period, first set the time outside this window (e.g., to 6:00 AM), then set the date, and finally reset the time to the current time.
- Once the correct date is displayed, push the crown back into position 1 (fully pushed in).

Figure 1: Front view of the Zeppelin 9668-3 watch, highlighting the dial and crown for time and date adjustments.
4. Adjusting the Leather Strap
The watch comes with a leather strap and a pin buckle. Adjust the strap by inserting the pin into the desired hole for a comfortable and secure fit. Ensure the watch is not too tight, which can restrict circulation, or too loose, which can cause it to slide around your wrist.
Operating Your Watch
Automatic Movement
Your Zeppelin 9668-3 watch is powered by an automatic mechanical movement. This means it does not require a battery. The movement is wound by the natural motion of your wrist. When worn regularly, the watch will maintain its power reserve. If the watch is not worn for an extended period (typically 36-40 hours, depending on the specific movement's power reserve), it will stop and require manual winding as described in the "Initial Winding" section.
Calendar Function
The watch features a date display at the 3 o'clock position. The date automatically advances once every 24 hours. If the watch stops and restarts, or if there are months with fewer than 31 days, you may need to manually adjust the date using the crown as described in the "Setting the Date" section.
Water Resistance (5 ATM)
This watch has a water resistance rating of 5 ATM (50 meters / 165 feet). This rating means the watch is suitable for everyday use and can withstand splashes, rain, and brief immersion in water. It is not suitable for swimming, showering, diving, or any water sports where the watch might be subjected to significant water pressure or prolonged immersion. Always ensure the crown is fully pushed in before any contact with water.
Maintenance
Cleaning Your Watch
- Wipe the watch case and crystal regularly with a soft, dry, lint-free cloth to remove dust and fingerprints.
- For stubborn dirt, slightly dampen the cloth with water (ensure the crown is fully pushed in) and gently wipe. Avoid using harsh chemicals, solvents, or abrasive cleaners, as these can damage the watch's finish or seals.
Leather Strap Care
- Avoid prolonged exposure of the leather strap to water, direct sunlight, and extreme temperatures, as this can cause the leather to dry out, crack, or fade.
- Clean the strap with a soft, slightly damp cloth and allow it to air dry completely. Do not use leather cleaners or conditioners unless specifically designed for watch straps.
- Leather straps are consumables and will show signs of wear over time. Consider replacing the strap when it becomes worn or damaged.
Storage
When not wearing your watch, store it in a cool, dry place away from direct sunlight, strong magnetic fields, and extreme temperatures. The original watch box is ideal for storage.
Professional Servicing
For optimal performance and longevity, it is recommended to have your automatic watch serviced by a qualified watchmaker every 3-5 years. This service typically includes cleaning, lubricating, and regulating the movement, as well as checking and replacing seals to maintain water resistance.

Figure 2: Rear view of the watch, illustrating the automatic movement and the leather strap which requires proper care.

Figure 3: Detailed view of the automatic movement, emphasizing the intricate mechanical components that require periodic servicing.
Troubleshooting
Watch Not Running or Stopping Frequently
- Insufficient Power Reserve: If the watch has not been worn or manually wound for a while, its power reserve may be depleted. Manually wind the watch by rotating the crown clockwise 30-40 times (with the crown in position 1).
- Lack of Movement: Automatic watches rely on wrist motion. If you have a sedentary lifestyle, the watch may not be receiving enough movement to stay fully wound. Consider manual winding more frequently or using a watch winder.
- Crown Not Pushed In: Ensure the crown is fully pushed into position 1. If it's pulled out, the watch will not run.
Date Not Changing or Changing at Noon
- AM/PM Misalignment: The date mechanism changes around midnight. If the date changes at noon, the watch's internal 24-hour cycle is misaligned. To correct this, pull the crown to position 3 and advance the time by 12 hours. Then, reset the time and date as per the "Setup" instructions.
- Incorrect Date Setting Time: Avoid setting the date between 9:00 PM and 3:00 AM to prevent damage to the movement.
Condensation Under the Crystal
Small amounts of condensation that disappear quickly are usually not a concern. However, if large droplets or persistent fogging appear, it indicates that moisture has entered the watch. This requires immediate attention from a professional watchmaker to prevent damage to the movement. Do not attempt to open the watch yourself.
Specifications
| Brand | Zeppelin |
| Model Number | 9668-3 |
| Movement Type | Automatic Mechanical (21 Jewels) |
| Case Material | Silver Stainless Steel |
| Band Material | Brown Leather with Pin Buckle |
| Dial Color | Blue |
| Dial Window Material | Mineral Glass |
| Display Type | Analog |
| Special Features | Calendar (Date Display) |
| Water Resistance | 5 ATM (50 meters / 165 feet) |
| Country of Origin | Germany |
| Approximate Package Dimensions | 21 x 16.4 x 9 cm; 70 grams |
Warranty Information
Your Zeppelin watch is covered by a manufacturer's warranty against defects in materials and workmanship. The specific terms and duration of the warranty may vary by region and retailer. Please refer to the warranty card included with your purchase or contact your authorized Zeppelin retailer for detailed information.
The warranty typically does not cover normal wear and tear, damage caused by improper use, accidents, unauthorized repairs, or water damage if the watch's water resistance limits were exceeded or the crown was not properly secured.
Customer Support
For any questions, service requests, or technical assistance regarding your Zeppelin watch, please contact your authorized Zeppelin retailer or the official Zeppelin customer service in your region. You can usually find contact information on the Zeppelin official website or through your point of purchase.
When contacting support, please have your watch model number (9668-3) and proof of purchase readily available.