To Measure Hourly Rate of Operation Use the stopwatch to measure the time required to complete 1 job. Tachymeter scale indicated by STOPWATCH hand gives the average number of jobs accomplished per hour.EX: If 15 jobs are completed in 20 second:*180*(tachymeter scale figure) x 15 jobs= 2700 jobs/hour
Advice / Guide for Use
Don't adjust the calendar between 9:00 pm-3:00 am, when the parts of the watch revolve with the calendar the calendar may result in damage in internal gear
The format change of calendar of week is divided into two kinds (quick and slow) because of the different formats.The first kind finishes in +5 minutes while the second in 3 hours.
In terms of watch with spiral knob, please first rotate counter clockwise the pull straightly.
After time is set, the knob should be locked knob and never tightened clockwise to prevent water in.
In terms of watch with calendar, please adjust the calendar to the day first and then move the hour hand
to adjust the calendar so that it can avoid confusing day and night before your expected one due to direct adjustment of the calendar.
Battery: The original batteries are installed in the manufacturing factory. When power
source is insufficient please go to a professional watch repair shop to replace. If you choose to do it yourself its at your own risk.
Instructions of The Watch
Do not try to open the watchcase or dissemble it.
The interference of strong electrostatic charge may lead to the failure of the display screen normally and even damage the accessories inside the watch.
Interference of electrostatic charge may lead to winding patterns on the display screen which won't influence the functions of the watch (however it must be avoided).
The waterproof sealing rubber ring is to prevent letting in water and dust, and it is strongly advised to change it every two to three years.
The watch is designed for normal use, but please do not use it in a rude way or drop it.
Please do not attach the watch too tightly on your wrist. it is appropriate if it can still let one of your fingers in.
If there's any moisture on the surface, please ask a professional to check the watch immediately.
When cleaning the watch or the watchband, please clean with a soft cloth soaked with water or neutral detergent and do not use volatile chemicals ( e.g. benzene, thinner, spray lotion, bleach etc.).
Prevent the watch from contacting shampoo, cologne, solar oil and other toiletry articles. Because they may damage the plastic parts of the watch. If the watch has contacted the above articles, please clean with dry and soft cloth immediately.
Please put the watch at a dry place when it is not used.
Avoid using the watch at places with gasoline detergent, spraying agent, paint, etc. Because they contain chemicals that may damage the sealing ring.