HP-01 repair kit

For the first time in history there is a repair kit available for the famous HP-01 LED wristwatch calculator.

The “new HP-01” repair kit is the first ever replacement for the original HP-01 ceramic hybrid module. It contains a modern accurate Real Time Clock and emulates the original microcode.

Many precious HP-01 wristwatch calculators were damaged by leaking batteries, which caused corrosion beyond normal repair. The ceramic hybrid modul,  even if it is partially still working, cannot be accessed for any kind of repair.

Now the “new HP-01” replaces the ceramic module and starts a wonderful new life of your HP-01.

For repairing  you have to remove the LED display from the original module and transfer it to the new module. After reinserting and replacing new batteries, it will show the time and date again exactly like the real HP-01. We took considerable attention to the achievement of a perfect emulation of the original behaviour.


    Several years of battery life time in standby mode with two standard SR44 cells. More than 15000 times time or date display before batteries must be replaced.

    Two hundred year calendar from 1.1.1900 to 12.31.2099

    Accurate +-3ppm time with temperature compensated quartz. Full calculator capability,

    Alarm time function with buzzer alarm.

    Full stopwatch functionality also in standby mode. Dynamic calculations.

    Battery life operating time counter. Shows the accumulated time the display was running.

    12/24h mode, Month/Day or Day/Month mode, Memory store and recall and many more.

Because the replacement is not trivial, we offer you a full service. You send us your defective watch and we will send it back repaired. You also will get the original hybrid module for your showcase.

Full service repair  HP-01                         499,- Euro + vat, including insured shipping

If you are a skilled technician we offer you the repair kit for Do It Yourself, including a comprehensive manual with instructions. If you never before opened a HP-01 case please consider the full service repair.

Do It Yourself Repair kit new HP-01          299,- Euro + vat, including shipping

(order by mailing to sales@panamatik.de)

Read the new HP-01 user manual for getting a comprehensive insight about its features.


HP-01 Stylus

Each HP-01 calculator used to have a wristband stylus for operating its slightly recessed keys. In many cases, this stylus was either lost or is missing its plastic tip. For the first time there is a new Stylus available, which will reestablish the full functionality of your HP-01 watch.

Metal Version

The new HP-01 stylus is a 3D printed accurate replica of the original in size and curvature and fits perfectly into the wristband clasp. The plastic tip is made of polyamid, stabilized by a small steel needle, which is fixed into the front of the stylus and makes it nearly unbreakable.


If you own an HP-01 wristband with missing stylus, now you will be very happy to get this part back to where it belongs.

It is available in polished solid silver or polished solid brass, perfectly made for your    HP-01 stainless steel or your HP-01 gold. *

Hard Plastic Version

If you own an original stylus you could still need the convenient plastic stylus version, which is cheap and you can use it when wearing your watch out of town, to avoid accidentally losing the original part. The plastic stylus is available in metallic plastic for the stainless steel HP-01 or yellow color for use with an HP-01 gold.

HP-01 Stylus Polished Silver 119,- Euro for HP-01 Stainless Steel

HP-01 Stylus Gold plated Polished Brass 119,- Euro for HP-01 Gold

HP-01 Stylus Hard Plastic  (you can order directly from shapeways)

(order by mailing to sales@panamatik.de)