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hi. can any body tell me how to remove a caseback from a rectangular watch (Boss HB 22.1.14.2008/1.526.804)i need to replace the glass. i cannot seem to find a recess for a knife etc as the lugs are as one with the case and there is no room to play with.thanks B.

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Probably. There are already scratches there. [emoji4]

Sometimes I have to use a single edge razor blade with a metal backing to start some of those off. There is also a nifty little black tool on the bay that resembles a little crowbar that you can get from China and they work great as long as you keep the edge sharp. They provide the much needed leverage that a screwdriver tip just won’t give you and you don’t have to worry about a screwdriver blade being stuck in your hand or finger. Painful experience.

 

 

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thanks guys.sorted it.took the broken glass out and then pushed through the dial and the back came away easily,although i would probably need one of the tools suggested for next time!(battery change etc).tried to get it off earlier near the crown but sadly the stem broke at the point where it goes into the crown (boss).so i now have the problem of trying to get that bit of the stem out.fitting a new stem wont be a problem?

2017-10-11 12.47.20.jpg

2017-10-11 12.46.53.jpg

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i don't think you'll be able to remove that piece, and will need a new crown. And since you need a  specific replacement cystal also , that may be a bit too much to make the repair worth on on a quartz fashion watch.

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    • I have removed the stem and open the case. The Movement can't drop out but it can be rotate Anyone has idea THANK YOU
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    • Outstanding, Marc! Your information is really helpful and clears this up, especially given that yours were purchased as sets. Thanks, man. So, it appears I jumped the gun on this one, but I am relieved. I will say, though, that all of my reamers and concave pushers are number-stamped and appear to be of better quality.  Also, the bayonets on my pushers are actually the same color as the steel.  The next thing to do is restore the heads of these pushers with some polishing paper.  Alex at the Watch Repair channel has a nice little video on this.   I appreciate your help! Frank      
    • Just installed it on my iPhone (my only iOS device) and it appears to be intact and functional. I may have to go out and buy myself an ipad just for this app.
    • I have two Seitz sets, one ancient (with the 3mm anvils) and one just old (with 4mm anvils) plus a collection of spare pushers of assorted vintage. Not one of them is marked with it's size. Something which I have found very irritating when I have been using the tool and not returning pushers to their correct place in the tray every time as it means that I have to get the calipers out and measure them. These were bought as sets and collectively I have over 100 pushers so it would seem highly unlikely (if not inconceivable) that they are all cheap knock offs, especially as they are old enough to pre-date the prevalence of the Chinese knock off industry (at least as applied to watch making tools). I therefore believe them to be original Seitz parts. And there is no numbering. The shape of the bottom of the pump pushers is the same as your photo. The only thing that may not be the same is that the slotted insert (looks like a screw but is in fact a bayonet) should be brass. Yours looks the same colour as the steel but that could just be the lighting.
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