Operating and Winding the PT5000 Movement in the NSBwatch 1887 Dive Watch

Operating and Winding the PT5000 Movement in the NSBwatch 1887 Dive Watch

Dive watches require precision, durability, and reliability. The NSBwatch 1887 Dive Watch embodies these attributes, featuring the respected PT5000 automatic movement. In this article, we'll explore how to properly operate and wind this timepiece.

Understanding the PT5000 Movement

The PT5000, often compared to the Swiss ETA 2824-2, is an automatic, self-winding movement. Thanks to its 25 jewels and a frequency of 28,800 vibrations per hour, this Chinese movement is both precise and robust. With a power reserve of up to 38 hours, it ensures your NSBwatch 1887 remains accurate even when off the wrist for a day.

Setting the Time and Date on Your NSBwatch 1887

The NSBwatch 1887 features a date complication. Here's how to set the time and date:

  1. Unscrew the crown: Since your NSBwatch 1887 features a screw-down crown, gently unscrew it by turning it counter-clockwise.
  2. Pull out the crown: After unscrewing, pull the crown out to the second position to set the time.
  3. Rotate the crown: Turn the crown clockwise or counter-clockwise to move the hands to your desired time.
  4. Push in the crown: Once the time is set, push the crown back into its original position. Screw it back in place by turning it clockwise. The watch should start ticking.

For setting the date, pull the crown to the first position after unscrewing it and turn until the date changes. Avoid changing the date between 9 PM and 3 AM to prevent damaging the movement.

Winding Your NSBwatch 1887

The PT5000 movement in your NSBwatch 1887 automatically winds itself as you wear it. However, after a period of inactivity, you might need to manually wind it. Follow these steps:

  1. Unscrew the crown: Rotate the crown counter-clockwise to free it from its secured position.
  2. Wind the watch: With the crown in its normal position, turn it clockwise for about 20 to 40 full turns. This should get the movement started.
  3. Screw in the crown: Once you have wound the watch, gently push the crown against the case and turn it clockwise until it's secure.

Be mindful not to overwind the watch. Although the PT5000 movement features a slipping clutch to prevent overwinding damage, it's best to stop winding when you feel resistance.

Regular Maintenance for Your NSBwatch 1887

To keep your NSBwatch 1887 functioning at its best, regular servicing every few years is recommended. This should involve cleaning, oiling, and replacing parts as necessary. Always trust a skilled watchmaker with this task to protect the longevity and accuracy of your PT5000 movement.


Operating and winding the PT5000 movement in your NSBwatch 1887 Dive Watch is a simple process once you understand the basics. The key steps involve setting the time and date, winding, and regular maintenance. With proper care, your dive watch will provide you with precise timekeeping for many years to come.


  • The PT5000 automatic movement in the NSBwatch 1887 is a robust and precise mechanism, requiring regular winding and servicing.
  • Setting the time and date on your watch involves unscrewing and pulling out the crown, adjusting accordingly, then pushing in and screwing the crown back into place.
  • Manual winding involves unscrewing the crown, turning it clockwise for 20 to 40 full turns, then screwing it back in.
  • Regular maintenance by a professional watchmaker will keep your NSBwatch 1887 operating at its best.