Complete disassembly: How is the replica version of the Omega 8500 integrated movement produced by VS Factory?

Comprehensive comparative analysis of End-to-End Insertion and Factory Production Omega 8500 Integrated Movement Replica Version N models: Case finishes, movement precision, dial details and production tolerances are examined in detail with Saat Detective expertise standards.

Is the VS Factory 8500 movement good?

The advantage of this movement is that it is no longer just an imitation movement with decorated bridges; The case back appearance is more realistic, the date can be adjusted quickly with the hour hand, and its functions are the same as the original.

How to tell if a mechanism is VS Factory 8500?

In short: check if the balance wheel is black; If it's black, it's a VS Factory 8500 movement.

Movement and Caliber Performance

Now let's get straight to the point; Let's see whether this VS8500 is really that impressive by disassembling the mechanism step by step.

Let's get started. First we open the back of the case.

Case and Body Workmanship

Move near the Swiss steel stamp. Be gentle, do not use too much force; Turn the screw slowly and when the spindle is released, pull the crown to the first stage.

The next step is to remove the rotor. Insert a small screwdriver into the washer and try to open it by gently moving it with the tip of the screwdriver. See the picture below.

There is a small adhesive where the red arrow points. Carefully place the part pointed by the arrow in a tray or box for ease of reassembly.

The rotor bearing is very similar to the 2824-2 mechanism; probably modified from 2824. Remove the rotor.

Unscrew the 3 fixing screws around the bearing (part in the green circle).

These are decorative screws. Don't touch them! Take it out and clean it without applying any oil.

Rotor and screws placed on the tray.

Once you remove these three fixing screws, you can remove the mechanism from the case.

Removed dial surface.

Dial and Hand Details

Turn the dial foot screw approximately 180 degrees and carefully remove the dial from the red circle position.

Next are these 3 black screws; Do not use too much force when removing.

Here you can see how the date mechanism works. Then unscrew the 3 screws and remove the spacer plate.

Date plate at bottom. These two gears are riveted, so they need to be lubricated after cleaning. Drop a small amount of HP1300 where the green arrow points.

The next step is to remove the date gear and transmission gear.

Remove the gear next to the bridge.

You can see the remaining oil where the orange arrow points; You can see that some oil dirt has formed where the green arrow points. This mechanism has been used for some time; It will become smooth after oil cleansing.

On the back you can see the 8500's anchor escape structure; The stones and the black balance wheel are clearly visible.

In the next step, release all power from the mainspring.

After removing the balance wheel, note that you have not yet removed the screw in the green circle; Do not remove the one in the red circle for now.

You can now remove these three screws.

This appears to be in the same position as the reverse gear on the 2824-2.

Black fixing screws on the right and left side.

Remove the front bridge gear.

This place needs oiling.

Note the black gears 1 and 2; Even though they seem the same, they are actually different. You need to make a mark when removing it. Where the arrow points is the balance mechanism.

Let's go back to the front; You can now disassemble it.

Now let's look at the crown we removed; The structure on it provides the daily time and date setting function.

Dismantling of the parts has been completed; All that was left was an empty main sinker.

Okay, let's take a group photo of them all, haha. Now we are ready to clean. It will soon be cleaned with ethanol – isopropyl alcohol, then dried by heating quickly for 3-4 minutes. I won't put the next step here. Assembly is also a job that takes at least as much time. You can also think of this as an after-sales maintenance process. It seems so simple when you watch it, right? But actually it requires a lot of time.

You see, every part of this mechanism has a function; It cannot be compared to an ordinary imitation bridge mechanism. Okay, this is where the disassembly review of the VS Factory 8500 integrated mechanism ends in this section. Thanks for watching.