Zeon IN1604 CALIBRE 721 Operation Manual

Operation Manual for Zeon IN1604 CALIBRE 721 Watch (1 pages)

Specifications:

142/142920-in1604_calibre_721.pdf file (21 Oct 2023)
  • Manufacturer: Zeon
  • Category of Device: Watch
  • Document: IN1604 CALIBRE 721, File Type: PDF Operation Manual
  • Updated: 21-10-2023
  • Count of Pages: 1
Download IN1604 CALIBRE 721 Manual (1 pages)

Read PDF Document Online:

Data: UPD 21st October 2023

Zeon IN1604 CALIBRE 721 Watch PDF Operation Manual (Updated: Saturday 21st of October 2023 01:20:13 AM)

Rating: 4.4 (rated by 55 users)

Compatible devices: IN7300 CALIBRE 734, IN6800 CALIBRE 344, IN8702 CALIBRE 750, IN6902, IN1810 CALIBRE 735, IN1816 Calibre 619, IN2605 Calibre 820, IN1915 Calibre 619.

Recommended Documentation:

Text Version of Zeon IN1604 CALIBRE 721 Watch Manual (Summary of Contents)

(Ocr-Read of Document's Main Page, UPD: 21 October 2023)


 
Calibre 721 
 
Automatic Movement Operation Manual 
 
Automatic watches can be used only by those who are reasonably active as the automatic 
winding relies on a regular movement of the wrist. The watch must be given an initial manual 
wind of 8 to 10 turns and provided that it is worn on the wrist for a minimum of 8 hours each 
day it will continue to function indefinitely and may be taken off the wrist for a maximum period 
of 30 hours. If this period is exceeded the movement will stop and another manual wind will be 
necessary. It must be remembered that when worn in bed the movement of the wrist is 
insufficient to operate the automatic winding.  
 
Time Stand Accuracy  
 
1)  21,600 beats per hours 
2)  Accuracy between -30 to +30 seconds per day worn under normal conditions.  
 
Butterfly Strap Adjusting Instruction 
 
 
 
 
 
 
 
 
 
 
Firstly, open the butterfly buckle and then pull out the pin. Adjust the strap to the required 
length, and then push back the pin into the correct hole. Finally, close the butterfly buckle until 
it clicks into place.  
 
Page 1 
 
Water Resistance Table 
  
Level of 
Water 
Resistance 
Suitable for 
Everyday 
use 
Can 
withstand 
accidental 
splashing 
Suitable for 
Swimming 
Suitable for 
Pool Size 
Suitable 
for 
snorkelling 
or water 
sports 
Suitable for 
high board 
diving or sub-
aqua diving 
 
None  Yes  No  No  No  No  No 
3 ATM  
(30m/ 
100ft 
Yes  Yes  No  No  No  No 
5 ATM 
(50m/ 
150ft) 
Yes  Yes  Yes  Yes  No  No 
10 ATM 
(100m/ 
300 ft) 
Yes  Yes  Yes  Yes  Yes  No 
 
Water resistance is not permanent. In the course of time, the gaskets of the case and 
crown may become worn and reduce the water resistance of your watch. We recommend 
the periodic checking 
 
Normal Crown – always make sure it is pushed fully into case 
Screw down Crown – tighten screw down crown completely to screw lock position.  
 
To maintain water –resistance crystal, crown and case must remain intact 
 
Exposure to Salt Water 
If your watch is designed for sports or working in the water and it becomes exposed to salt 
water or significant amounts of perspiration, it should be rinsed in fresh water and dried 
thoroughly with a soft dry cloth.  
 
Important 
Buttons must not be operated while in contact with water 
 
Page 2 
 
Functions 
 
-  Hours 
-  Minutes 
-  Seconds Hand Dial 
-  Date 
-  Power Reserve Dial 
-  Water Resistance – Check the back of the watch and refer to the Table. 
 
 
Instructions for Time and Date Setting 
 
1)  To achieve an accurate date setting, by using a point device, press button A until 
a date prior to the date you required is achieved. i.e. if today is the 16
th
 then set 
it onto the 15
th
.  
2)  Unscrew the crown cover and pull the crown out, and turn the crown anti-
clockwise until the correct date is achieved. Now set the time but make sure the 
time is set onto AM or PM. Finally push the crown back to Normal Position.  
 
Power Reserve Dial 
 
This watch has a Power Reserve Indicator Dial to show amount of power remaining within the 
movement. Wind the watch until the indicator hand on Power Reserve dial reaches the “40” 
position, which means that it is now in full power. If the watch is not in use and Power Reserve 
Indicator hand showing “40” position the watch will continue to function until the indicator 
finally reaches “0”. At this stage the power indicator needs to be rewound until it reaches “40” 
position stage.  
 
 
 
 
Page 3 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Page 4 
 
Calibre 721 
IN1604, IN1605 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Page 5 
 

 

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