This document provides a detailed overview of the Seagull ST3600K Mechanical Movement, a core component for a watch, likely a pocket watch or a large wristwatch given the movement type. The manual is presented in both English and German, indicating its international applicability.
Function Description
The Seagull ST3600K is a mechanical winding watch movement. This means it operates without a battery, relying instead on the stored energy from a wound mainspring. The movement is responsible for accurately tracking time, displaying hours, minutes, and seconds. It requires manual winding to function, and once wound, it will start to move naturally.
Important Technical Specifications
The technical specifications highlight the precision and performance characteristics of this movement:
- Movement Type: Mechanical Winding Movement (Mechanisches Uhrwerk)
- Model: Seagull ST3600K
- Accuracy Per Day (Ganggenauigkeit Tag):
- -20 seconds / +40 seconds. This indicates the expected deviation in timekeeping over a 24-hour period. A negative value means the watch might run slow, while a positive value means it might run fast.
- Running Time (Gangreserve):
- Approximately 42 hours (Ca. 42 Stunden). This is the power reserve, indicating how long the watch will continue to run after being fully wound without further winding.
- Vibration Frequency Per Hour (Vibrationsfrequenz Stunde):
- 21,600 vibrations per hour. This refers to the oscillations of the balance wheel, which is a key determinant of the watch's accuracy. A higher frequency generally indicates greater precision.
- Jewels:
- 17 Jewels. Jewels (synthetic rubies) are used as bearings for the gears within the movement. They reduce friction and wear, contributing to the longevity and accuracy of the watch.
Usage Features
The manual outlines the straightforward procedures for setting the time and winding the mainspring:
Setting the Time (Setting the Time / Zeit Einstellen)
- Crown Position 1: To set the time, the crown must first be pulled out to its "1st Position" (1. Position Krone). This disengages the winding mechanism and engages the hand-setting mechanism.
- Adjusting Hands: Once in the 1st position, the crown is turned to adjust the hour and minute hands to the desired time.
- Engaging Movement: After setting the time, the crown is pushed back into its "Normal crown Position" (Normalposition Krone). This action re-engages the movement, and the small second hand will begin to run, indicating that the watch is now operating.
Winding the Mainspring (Winding the Mainspring / Aufziehen)
- Manual Winding: The Seagull ST3600K is a mechanical winding watch, meaning it must be manually wound to function.
- Winding Procedure: To wind the watch, the crown is turned clockwise while it is in its "Normal position" (Normalposition).
- Initiating Movement: Winding the crown several times clockwise will build up enough energy in the mainspring for the watch to start moving naturally.
Maintenance Features
While the manual doesn't explicitly detail maintenance schedules, the information provided implies certain aspects:
- Regular Winding: As a mechanical winding watch, consistent manual winding is essential for its continuous operation. Users should establish a routine for winding the watch, especially if it's worn daily, to ensure it doesn't stop.
- Crown Handling: Proper handling of the crown—pulling it out gently to the correct position for setting time and pushing it back in securely—is crucial to prevent damage to the internal mechanisms.
- Accuracy Monitoring: The specified accuracy range (-20 sec / +40 sec per day) provides a benchmark for users to monitor their watch's performance. Significant deviations outside this range might indicate a need for professional servicing.
- Power Reserve Awareness: Knowing the approximate 42-hour running time allows users to anticipate when the watch might stop if not wound, helping them manage its operation.
In summary, the Seagull ST3600K is a robust and reliable mechanical watch movement, characterized by its manual winding mechanism, 17 jewels, and a balance frequency of 21,600 vibrations per hour, offering a power reserve of approximately 42 hours. Its operation is straightforward, involving simple crown manipulations for time setting and winding.
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