Orient 46943

[Andrew Schiavo]

Hiit's possible to install a mainspring by hand, but you'd want to know what you're doing. Probably your best best is to buy a new mainspring and install that instead, as it will come pre-wound and ready to pop into the barrel. You might need to buy a barrel complete with mainspring ands arbor though, as it looks like these are manufactured to be replaced as a complete unit during servicing (same as Seiko 7xxx movements).

Otherwise you're going to want a mainspring winder with the correct arbor size and rotation direction for your spring, and ETA 2892 winder should be fit for purpose. There are cheap sets on Ali Express that have ETA 2892 winders included, or you might be able to get an individual one.

Heyo, you'll find that the Orient 46943 is most likely a clone of a more popular movement and/or uses parts that are virtually identical to other movements, so there has been no need to create tools specific to this movement.

If he's put the mainspring into the winder the wrong way he's likely going to ruin it. What exactly went wrong? The direction and diamater of that winder should be correct for that particular mainspring (from what I've found).

I'm wondering if he's using a pin/arbor vice so he can wind in the opposite direction that the supplied winder runs in? Might be something to consider, perhaps the 2892 winder does run counter to the direction you need.

If you're hearing a clicking sound from your winder, the catch isn't engaged properly or you've got the mainspring backwards. You can risk the winder kinking/bending the mainspring particularly if you rotate the winder counter to the mainspring winding direction, as the catch can push the end of the mainspring and break it.

First I would like to say I just got into the hobby. I've watch both courses and followed along with the 6497 movement. After going through the disassembly and assembly a couple of times I've decided to work on an old Orient from my dad that has been out or order for several years.

After watching a few videos and extracting the movement, I noticed how much smaller everything is compared to the one used in class. While I'm currently awaiting for Level 3 in order to properly troubleshoot a movement I believe my issue lies within the Escapement (oscillator or pallet fork).

It seems to me the top pivot axis of the pallet fork is broken of very used up as I'm having a hard time getting to behave properly as I have seen it work in the 6497 and seen in videos online. While placing the oscillator has been the most challenging portion, I've gotten it to beat but it beats way too fast and erratic.

I've included some photos of the pallet fork and video of it ticking when I get it properly setup as I believe the missing top pivot prevents the fork from swinging evenly from side to side and there is some sort of vertical play as I believe the top pivot stone does not properly captures the fork. (I'm currently uploading a video to share)

One more thing I have to mention is that I have not proceeded with doing any cleaning as show in the lessons as I've been wanting to get comfortable with the movement and so I'm not sure if that could be an issue with the pivot stones not allowing it to sit properly although I don't think that's the case.

I appreciate if you could offer any feedback on the issue. I seen this movement seems to be pretty good, but I was considering maybe finding a replacement Miyota or another orient on ebay or something.

What you call the oscillator. That is known as the balance complete. That whole balance has to be clean, any little hair or oil will cause the hairspring coils to stick togather and the timkeeping will be erratic.

Hello, Is it necessary to use a graphite grease on the walls of a automatic movements mainspring? Did you do it on this watch cuz am servicing an old orient tristar with that same movement and i dont really wanna spend some money on some graphite grease that i will use once but never again.

Hi,

Good work, would you say that if taken care of reasonably well these movements can last a long time?.

Your comment earlier seems to imply that, I hope so I have three Orients.

One final point would it not be possible to source a generic mainspring?

Lower amplitudes compared to ETA movements are normal, according to the Seiko Service Center in Tokyo, which I visited 2 years ago.

Even older Grand Seikos do rarely exceed 240 degrees.

But as long as they can be regulated quite well, I do not care about their amplitudes. Technically seen, lower amplitudes mean even less wear.

As watch production was becoming mechanized in the late 1960's, Orient found that they needed a modern yet inexpensive movement for mass production. Rather than develop their own new movement, Orient licensed the then-new Seiko 7006, which had been designed for automated mass production. Orient also licensed Seiko's Magic Lever winding system from the aging Seiko 6600 family and brought these components together to become their 46 series. Since most of the industry was turning to quartz at the time, Seiko was not concerned about setting up a competitor for production of mainstream automatic watches.

The most common movement in this family is the 46940, the descendent of which, Cal. 46943, remains Orient's most popular movement today. It is little changed since its introduction in 1971 and millions of these movements have been produced. Although functionally identical, today's Orient 46 is less decorated and finished, though accuracy and reliability are unchanged. Like the Seiko 7006, the Orient 46 is a 19 or 21 jewel movement with Diafix on the third wheel and escape wheel.

Orient has added many complications to the basic 46 movement. The company has long been a proponent of power reserve indicators, and this is often found on their Seiko-derived movements even though Seiko themselves never implemented this on the 7000 series. Orient also often uses retrograde hands, especially for the day and date.

The 7006 had a quickset date feature, so the Orient 46 also has this. The crown is pulled out to the second position and the date wheel can be advanced rapidly. However, Seiko had not yet developed a quickset day-of-week feature on the crown, so Orient's 46 movements still lack this capability. Instead, Orient movements rely on a second crown at 2 00 to set the date wheel, and this has become a signature of their watches, notably the Orient Mako.

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The Orient caliber F4902 is said to be an upgrade to the caliber 46943. The main difference is that the older 46943 has a pusher on the side (2:00) to change the calendar (day of the week), while the newer F4902 calendar can be corrected via the crown.

This is caliber of my new watch Orient Automatic Tri Star F49SS013-D1SX (Blue),

the most beautiful watch of my collection, produced in the city of Manaus, Brazil.

Este o calibre do meu novo relgio automtico Orient Trs Estrelas F49SS013-D1SX (Azul), o relgio mais bonito da minha coleo, produzido na cidade de Manaus, Brasil.

Central and South America, but especially Brazil, seem to get some very special Orient models, some of which I would love to have the opportunity to buy, like all those colourful 3-stars: Blue-Ciel, Emerald-Green, Ruby-Red, all those degrade-dials!

The F4902 Caliber can be found in a large number of newer Orient models, from diver watches to other kinds, like casual-looking ones, fliegers and so on. The reference for those models always start with F49, followed by the material indicating code (SS for Stainless Steel, TT for Titanium, SC for steel case and leather strap) and a number. I own two watches powered by the F4902: The limited edition diver F49TT001 and the flieger-looking F49SC012, wich has an glass back, allowing you to see the movemente. Classy.

Arguably an indulgence in a world where a 20 Casio digital is arguably a more accurate timepiece than any automatic watch, there is just something special about an automatic movement. And of course from a sustainability perspective the benefit of never having to change a battery, or contribute to landfill can only be a good thing.

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