I have been asked to fix a problem with the stem of an Omega Geneve that wasn't engaging to set the hands and wind. Fair enough, I'm becoming a little more experienced now after six months of tinkering and soon identified that the winding pinion had popped out of its housing and fouling the calendar wheel teeth - presumably someone else had removed the stem before! Anyhow, fiddly but I fixed the problem, reassembled, and everything tested out okay (winds, hands set, and calendar quick set works).
The problem now is that when I fit the second hand it keeps falling off, though while laid flat face up, the second hand moves around the dial normally. I've added a couple of photos, just in case you can spot anything. I must add that I ordered a set of used replacement hands, thinking that the second hand hole (if that's the term) had become worn and too large for the pinion. However, the replacement hand makes no difference. So am I now correct in looking towards pinion wear that's driving the second hand through the cannon pinion? Am I doing anything obviously wrong that you may be able to provide a tip for. I am using a proper Horotec hand fitting tool in an attempt to press the hand fully home, though afraid to exert much force in case I damage anything.
Any help would be greatly appreciated.
I purchased some (90-150 Blue Dauphine) hands (P/N 86.9142) from Esslinger. I wanted to verify that I ordered the correct size. I am new to watch repair—but am an experienced machinist so I am ok with measuring using calipers.
I measured the hour wheel on my Raketa (Movement 2614.H) at: 1.549mm (.061”) and the cannon pinion dia. at .965mm (.038”). I ordered the new hands size .90mm and 1.50mm (90-150) assuming that because the shafts are slightly larger their diameter would provide an interference fit for the smaller diameter hand holes.
hour wheel shaft is 1.549 – 1.50 hand hole = .049mm interference fit.
minute dia. is .965 – .90 = .065mm interference fit.
Are my assumptions correct about the interference fit? Did I order the correct size?
When I try to fit the hands to the hour wheel/cannon pinion I cannot get them started. I have no trouble getting the old hands to fit?? I even tried to fit the new hands upside down (because of the flange created when the mfg. stamped out the hands/hole) and still could not get them started. Any advice would be helpful.
I'm looking for an old pocket watch minute hand with square hole fitting, square hole measurement is approx 1.65 to 1.70mm and the length i need is approx 19.0mm. Im happy to buy a pair if need be. Need ot be gold. Ive checked cousins and bought some off ebay, but they only seem to have 1.50mm fitting, and its too small to file.
Can anyone help me out?
thanks for your input but your wrong on several levels about black dials and white dials and what eterna made and did not make your input is nothing special.A few Eterna ATP watches have been found with both black and white dials, mostly black, and a central seconds sweep hand. Black dials and central seconds are inconsistent with the ATP characteristics, but a handful of Eterna ATP watches exist and it is thought that about 600 may have been made from the known serial numbers.So there are black and white dials and the 850 series movements
Most military watches have a number engraved on it somewhere... there always remained the property of the military and the numbers were meant to keep track of who was issued what. Also the numbers helped to ensure servicing records kept accurately.
For the two dots on the hand.. this was more to break up the large mass of luminous material.. nothing special here.
Also I believe most military watches are usually black dialed?
Before - and - After 107 Timex Automatic. This model orginated with a 31 automatic and was later made with the update 107.
This watch insored designer Todd Synder to create a monern version. Actually quite a nice homage but saddly only a quartz