NH70 / NH71 / NH72 Movement Setup Guide

NH70 / NH71 / NH72 Movement Setup Guide

The NH70, NH71, and NH72 are the same skeletonized automatic movement. The only difference between them is the finish: silver (NH70), gold (NH71), and dark metallic (NH72).

This movement features manual winding, automatic winding through wrist movement, and a hacking function for precise time setting. There is no date complication.

If your watch has stopped or you are wearing it for the first time, follow the steps below.

Before First Wear

Give the movement a manual wind before putting it on for the first time. This ensures the mainspring has enough stored energy to start running properly.

1. If your watch has a screw-down crown, unscrew it by turning it counterclockwise until it releases.
2. With the crown in its normal winding position, turn it clockwise 20 to 30 times.
3. Pull the crown out to the time-setting position and set the correct time.
4. Push the crown back in securely.
5. If your watch has a screw-down crown, screw it back down completely to maintain water resistance.

Once on your wrist, normal movement will continue to wind the watch during wear.

Crown Positions

Your NH70 / NH71 / NH72 watch uses simple crown positions:

• Position 0: Crown secured / normal position
• Position 1: Manual winding
• Position 2: Time setting

If your watch has a screw-down crown, you must first unscrew it before using any crown function.

How to Wind the Watch

The movement winds itself automatically while worn. It can also be wound manually when needed.

To manually wind the watch:

1. Make sure the crown is in the normal winding position.
2. Turn the crown clockwise 20 to 30 times to give the movement enough energy to start running.
3. Once the watch is on your wrist, normal movement will continue to build and maintain power.

The movement has an approximate 41-hour power reserve when fully wound.

Wind the crown gently and never force it.

How to Set the Time

To set the time:

1. If your watch has a screw-down crown, unscrew it first.
2. Gently pull the crown out to Position 2.
3. The seconds hand will stop. This hacking function allows for more precise time setting.
4. Turn the crown to move the hands to the correct time.
5. Push the crown back in once the time is set.
6. If your watch has a screw-down crown, screw it back down fully.

Because this movement has no date complication, the time can be set at any hour without concern.

If the Watch Has Stopped

If your watch stops after being left unworn, this is normal.

Automatic watches rely on stored energy or regular wrist movement to keep running. If the power reserve is depleted:

1. Wind the crown clockwise 20 to 30 times
2. Set the correct time
3. Wear the watch as usual

After that, normal wrist movement should keep it running.

Care and Good Habits

A few simple habits will help keep your watch running well:

• If the watch is left unworn for several days, wind it manually before putting it back on
• Always push the crown back in securely after setting the time
• If your watch has a screw-down crown, always screw it down properly after use
• Never force the crown when winding or setting the time
• Have the watch serviced periodically to maintain performance over time

As a general guideline, mechanical watches benefit from servicing every 3 to 5 years, depending on wear and use.

A Final Note

The NH70 / NH71 / NH72 is designed to be simple, dependable, and rewarding to wear. Wind it when needed, wear it regularly, and let the movement do the rest.