Finding Seiko 5740C and 4S28 tech sheet.
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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. -
The original database is available on iOS devices here: https://apps.apple.com/fi/app/ranfft-watch-movements-archive/id6502008939 -
I no longer have my set so I can't help anymore sorry. Many on here have the set as its a must have tool for watch making/ repair. -
It needs to be stirred before use and that makes it feel a lot thinner than when in the bottle. Does it feel as thin as 9010 after stirring it? I guess not! Yes, it's strange! I don't know, but if it is on impact it would make sense. -
By Hawaiikook808 · Posted
Thanks, OH! I agree with you. I'm currently looking at them under magnification, and they are consistent in shape and form for each section (flat pushers, pump pushers, concave, reamers, etc.). Though, a few are in bad condition and need to be replaced. Before I cancel the return I have already initiated on eBay, can any of our members check to see if there are inconsistencies in markings on their sets? Also, I have included a snapshot of the bottom of one of the pump pushers, which are very unique in shape. Can someone tell me if the bottoms of their pump pushers match this photo? I'm hoping that Seitz had some inconsistencies in manufacturing over the years regarding markings. Crossing my fingers. I appreciate you guys. Frank
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