Esq ASTON 1/5 Operating Instructions Download Page 2

4.  Press button 

B

 to resume chronograph function. Hands will catch up 

with ongoing event.

5.  To read a second split time, press button 

B

 again.

repeat steps 2 through 4 to take any additional split times.
6. Press button 

A

 to stop chronograph.

7.  Take a reading of the final time, for example: 27 minutes, 3 and 4/5  

of a second. 

8. Press button 

B

 to reset chronograph hands to zero

.

To Synchronize Chronograph Hands: 

After a battery change or in the event of an error, you may need 
to manually adjust one or more chronograph hand to align them all 
correctly at their zero positions. 

1. Pull crown out to position 2.
2.  Use push-button 

B

 to adjust chronograph 30-minutes counter hand 

E

press and hold button to advance hand rapidly.

3.  Use push-button 

A

 to adjust center-mounted chronograph fifths-of-a- 

second hand 

C

; press and hold button to advance hand rapidly.

4.  When both chronograph hands are aligned at 12 o’clock, push crown 

back in to position 1. 

Timing hands are now synchronized at zero position, and chronograph is 
ready for use.

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