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Strange Mechanism on the Side of a Sekonda: Help Please

4.9K views 8 replies 7 participants last post by  Always"watching"  
#1 ·
I have three vintage 25J Sekonda watches with a day/date calendar window and for some reason, the calendar function is faulty in all of them. I notice that these watches, all versions of the same model including an identical example, feature an odd mechanism on the side of the case and I am wondering if this mechanisms has something to do with setting the calendar, or is the calendar on my watches just broken. I show this model here below, including the unusual (push and slide?) mechanism, and would be most grateful if someone could explain this feature/mechanism to me (pics below from agnieszka0302 on eBay):



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#4 ·
unusual (push and slide?) mechanism,
Wind the hands past midnight so the date has changed at 00.00 hours then wind on to 12.00 hours (noon) if you push in the center part as pictured with the end of a ball point pen, it is the quick change date mechanism. Set it to the day before the date you want it set then wind the hands on to the correct date.
 
#5 ·
Russian watches are made fool proof. You can change the date whenever You decide, no mater where the hands are - no danger to break anything. This Slava 24 movement has momentary date change - a complicated calendar mechanizm. Just a click and the date is changed, it can be adjusted to change exactly at 12:00
The button is designed to be pressed by nail and changes the date not when pushed forward in, but when returns back. The usual reason for malfunctioning is dirt that doesn't let the button move free.
 
#7 · (Edited)
Mine says Hi!

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P.S. Don't try changing the date around the normal date change time, say between 11 and 1 o'clock as it may damage the innards! The problem is that the watch usually stops at the date change time due to the resistance of the date mechanism, so the mechanism is engaged when folks try to move it on with the pusher, thus damaging the fine parts! Turn the hands, so that the time is well past 1 o' clock, taking into account if the watch is on A.M. or P.M. (Manually turning the hands to the next date change will allow you to see when A.M. starts. Once past, say, 1. a.m. you can advance the date button to the required date. Hope that is clear???

EDIT:- Oops. Just saw the comments above. My instructions are based on a variety of watches that I have owned and used, so are based on experience in practise, not knowledge of the particular watch manufacturer. It has always worked for me and found it to be best practise to avoid costly repairs!