1. Introduction
Thank you for choosing the Zeppelin LZ 14 Marine Day Date Moonphase Watch, Model 8637M-4. This timepiece combines classic design with precise quartz movement, featuring day, date, and moonphase complications. This manual provides essential information for setting up, operating, and maintaining your watch to ensure its longevity and accurate performance.

Image 1.1: The Zeppelin LZ 14 Marine watch showcasing its luminous green dial and hands in low light conditions. This feature enhances readability in the dark.
2. Setup
Your watch is powered by a quartz movement and includes a battery. Follow these steps to set the time, date, day, and moonphase.

Image 2.1: Side view of the Zeppelin LZ 14 Marine watch, highlighting the crown (A) and the two pushers (B and C) used for setting various functions.
2.1 Setting the Time
- Pull the crown (A) out to position 2.
- Rotate the crown clockwise or counter-clockwise to set the hour and minute hands to the correct time. Ensure you differentiate between AM and PM, especially when setting the date and day.
- Push the crown back to position 0 to start the watch.
2.2 Setting the Date
- Pull the crown (A) out to position 1.
- Rotate the crown clockwise to advance the date.
- Set the date to the day before the current date.
- Push the crown back to position 0.
- Now, pull the crown (A) out to position 2 and advance the time past 12 AM (midnight) until the date changes to the current date. Continue setting the time to the correct current time.
- Push the crown back to position 0.
2.3 Setting the Day
- Use the upper pusher (B) to advance the day indicator until the correct day is displayed.
2.4 Setting the Moonphase
- Use the lower pusher (C) to advance the moonphase indicator.
- Refer to a current moon calendar to set the moonphase accurately.
2.5 Band Adjustment
The stainless steel bracelet can be adjusted for a comfortable fit. It is recommended to have this adjustment performed by a professional watchmaker or jeweler to prevent damage to the bracelet or clasp.
3. Operating Your Watch
Your Zeppelin LZ 14 Marine watch is designed for daily wear and provides accurate timekeeping along with its unique complications.

Image 3.1: A detailed view of the watch dial, illustrating the positions of the day, date, and moonphase indicators for easy reference during operation.
3.1 Basic Timekeeping
Once set, the watch will continuously display the current time. The quartz movement ensures high accuracy.
3.2 Reading the Complications
- Day Indicator: Located on the dial, it displays the current day of the week.
- Date Indicator: Located on the dial, it displays the current day of the month.
- Moonphase Indicator: This sub-dial tracks the lunar cycle, showing the current phase of the moon.
4. Maintenance and Care
Proper care will help preserve the appearance and functionality of your Zeppelin watch.
4.1 Cleaning
- Wipe the watch case and bracelet regularly with a soft, dry cloth to remove dust and fingerprints.
- For stainless steel, a slightly damp cloth can be used, followed by immediate drying. Avoid harsh chemicals or abrasive materials.
4.2 Water Resistance
Your watch has a water resistance rating of 50 meters (5 ATM). This means it is suitable for short periods of recreational swimming. It is not suitable for diving, snorkeling, or prolonged water activities. Avoid operating the crown or pushers when the watch is wet to prevent water ingress. Do not expose the watch to hot water or steam, as this can compromise the seals.
4.3 Battery Replacement
The watch is powered by a product-specific battery. When the battery runs low, the watch may stop or the second hand may skip. Battery replacement should be performed by a qualified watch technician to ensure proper sealing and function.
4.4 Storage
When not wearing your watch, store it in a cool, dry place, away from direct sunlight and extreme temperatures. Keep it away from strong magnetic fields, which can affect the accuracy of quartz movements.
5. Troubleshooting
If you encounter issues with your watch, refer to the following common troubleshooting steps:
- Watch Not Running: Check if the crown is fully pushed in to position 0. If it is, the battery may need replacement.
- Incorrect Time/Date/Day/Moonphase: Refer to the "Setup" section to re-set the watch functions. Ensure you are not attempting to set the date or day between 9 PM and 3 AM, as this can damage the movement.
- Condensation Under Crystal: Small amounts of condensation may appear temporarily with sudden temperature changes. If condensation persists or appears as large droplets, this indicates a seal issue. Seek professional service immediately.
For issues not covered here, please contact authorized service centers.
6. Specifications
| Feature | Detail |
|---|---|
| Model Number | 8637M-4 |
| Movement Type | Quartz |
| Case Material | Stainless Steel |
| Case Diameter | 36 mm |
| Case Thickness | 9 mm |
| Dial Color | Green |
| Glass Type | Mineral Crystal |
| Strap Material | Stainless Steel |
| Water Resistance | 50 meters (5 ATM) |
| Battery | 1 Product Specific battery (included) |
| Item Weight | 102 g |
| Functions | Day, Date, Moonphase, Analog Display |
7. Warranty and Support
For information regarding warranty coverage, service, or technical support, please refer to the warranty card included with your purchase or visit the official Zeppelin website. Keep your proof of purchase for any warranty claims.