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td1500 · 29 January 2010, 04:53 AM

i have been trying to monitor the accuracy of my 1967 OP date this week.
firstly it is running at about -8 seconds per day, is this acceptable for a watch this age,
also when i pull the crown out to change the time the second hand keeps moving. is this normal?
but what seemed really wierd was if i move the time backwards the second hand keeps moving forwards even though the minutes and hours are moving in the opposite direction? anyone know any more than me on this?

regards.
tom

Safetrends · 29 January 2010, 05:22 AM

Quote:

Originally Posted by td1500

i have been trying to monitor the accuracy of my 1967 OP date this week.
firstly it is running at about -8 seconds per day, is this acceptable for a watch this age,
also when i pull the crown out to change the time the second hand keeps moving. is this normal?
but what seemed really wierd was if i move the time backwards the second hand keeps moving forwards even though the minutes and hours are moving in the opposite direction? anyone know any more than me on this?

regards.
tom

Tom, I have a 1505 just like you non quick set. 1565 or 1575 movement. Your watch is doing just fine. It is a work horse and it has little problems.

SLS · 29 January 2010, 05:31 AM

You have a non-hacking movement and what you are experiencing is normal when you adjust the time.
Scott

Highhorology · 5 February 2010, 11:04 AM

Typically with this movement the cannon pinion is made tighter which will stop the watch when the hands are moved slightly backwards (instead of a hacking mech.).

29 January 2010, 04:53 AM	#1
td1500 "TRF" Member Join Date: Sep 2009 Location: UK Posts: 95	1500 advice. i have been trying to monitor the accuracy of my 1967 OP date this week. firstly it is running at about -8 seconds per day, is this acceptable for a watch this age, also when i pull the crown out to change the time the second hand keeps moving. is this normal? but what seemed really wierd was if i move the time backwards the second hand keeps moving forwards even though the minutes and hours are moving in the opposite direction? anyone know any more than me on this? regards. tom

29 January 2010, 05:31 AM	#3
SLS "TRF" Member Join Date: Aug 2006 Real Name: Scott Location: GMT -7 Watch: GMT's & Sub's Posts: 10,399	You have a non-hacking movement and what you are experiencing is normal when you adjust the time. Scott __________________ "The bitterness of poor quality remains long after the sweetness of lower price is forgotten." -Benjamin Franklin Member No. 922

5 February 2010, 11:04 AM	#4
Highhorology Member Join Date: Jan 2010 Real Name: Andrew Location: Maine Watch: Gruen curvex Posts: 30	Typically with this movement the cannon pinion is made tighter which will stop the watch when the hands are moved slightly backwards (instead of a hacking mech.).

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