Best Aqua Terra Movement?

[Tcc13c]

It seems without a doubt that VSF makes the best Aqua Terra reps. However, there a several movements for this rep: 8500, 8900, and 8507. I have searched the forum and Google and there is nothing that compares or contrasts them that I can find.

Any omega rep experts have an opinion on which is best and why?

Also, as a side question, can you guys recommend anyone within the CONUS on RWI who can service one of these movements?

 

[Tcc13c]

Anybody?

 

[LChuggingtin]

Not an expert at all - but 8507 is just an 8500 movement which Omega itself decorates with a bullet and rifling pattern to showcase the brand's association to James Bond.

 

[santre22]

The rep movement exist in 2 different versions only GMT and non-GMT the number on rotor is only to mimic the one correct for the model it's in. Also some rotor/balance bridges is gold plated. Otherwise they are all the same.
The vsf have standard Swiss lever escapement and are not co-axial as the gen.
The VSF movement look very similar to the gen Omega but it's a custom Asian movement with complete different mechanical constructions.

genuine Omega are another story:

8400: co-axial, 3 hands, no date, (8500 based).

8401: same as 8400 with rose gold rotor and balance bridge (gold models).

8500: co-axial, 3 hands, date.

8501: same as 8500 with rose gold rotor and balance bridge (gold models)

8507: same as 8500 with 007 rotor

8508: same as 8500 but bridges in nivagauss material and 15000 gauss on rotor.

8511: handwound version of 8500 with gold balance bridge.

8520: lady version of 8500 (smaller and little different)

8521: 8520 with gold rotor/bridge for gold watches

8601: date, annual calendar based on 8500

8611: 8601 with gold rotor/bridge

8602: day-date based on 8500

8612: 8602 with gold rotor/bridge

8605: Gmt based on 8500

8615: 8605 with gold rotor/bridge

The 8900 series is then the same logic but it have master co-axial escapement.

 

[Tcc13c]

The rep movement exist in 2 different versions only GMT and non-GMT the number on rotor is only to mimic the one correct for the model it's in. Also some rotor/balance bridges is gold plated. Otherwise they are all the same.
The vsf have standard Swiss lever escapement and are not co-axial as the gen.
The VSF movement look very similar to the gen Omega but it's a custom Asian movement with complete different mechanical constructions.

genuine Omega are another story:

8400: co-axial, 3 hands, no date, (8500 based).

8401: same as 8400 with rose gold rotor and balance bridge (gold models).

8500: co-axial, 3 hands, date.

8501: same as 8500 with rose gold rotor and balance bridge (gold models)

8507: same as 8500 with 007 rotor

8508: same as 8500 but bridges in nivagauss material and 15000 gauss on rotor.

8511: handwound version of 8500 with gold balance bridge.

8520: lady version of 8500 (smaller and little different)

8521: 8520 with gold rotor/bridge for gold watches

8601: date, annual calendar based on 8500

8611: 8601 with gold rotor/bridge

8602: day-date based on 8500

8612: 8602 with gold rotor/bridge

8605: Gmt based on 8500

8615: 8605 with gold rotor/bridge

The 8900 series is then the same logic but it have master co-axial escapement.

Wow thanks for the detailed information Santre!

 

[superciuk73]

The rep movement exist in 2 different versions only GMT and non-GMT the number on rotor is only to mimic the one correct for the model it's in. Also some rotor/balance bridges is gold plated. Otherwise they are all the same.
The vsf have standard Swiss lever escapement and are not co-axial as the gen.
The VSF movement look very similar to the gen Omega but it's a custom Asian movement with complete different mechanical constructions.

genuine Omega are another story:

8400: co-axial, 3 hands, no date, (8500 based).

8401: same as 8400 with rose gold rotor and balance bridge (gold models).

8500: co-axial, 3 hands, date.

8501: same as 8500 with rose gold rotor and balance bridge (gold models)

8507: same as 8500 with 007 rotor

8508: same as 8500 but bridges in nivagauss material and 15000 gauss on rotor.

8511: handwound version of 8500 with gold balance bridge.

8520: lady version of 8500 (smaller and little different)

8521: 8520 with gold rotor/bridge for gold watches

8601: date, annual calendar based on 8500

8611: 8601 with gold rotor/bridge

8602: day-date based on 8500

8612: 8602 with gold rotor/bridge

8605: Gmt based on 8500

8615: 8605 with gold rotor/bridge

The 8900 series is then the same logic but it have master co-axial escapement.

Great information! Thank you

 

[LChuggingtin]

The rep movement exist in 2 different versions only GMT and non-GMT the number on rotor is only to mimic the one correct for the model it's in. Also some rotor/balance bridges is gold plated. Otherwise they are all the same.
The vsf have standard Swiss lever escapement and are not co-axial as the gen.
The VSF movement look very similar to the gen Omega but it's a custom Asian movement with complete different mechanical constructions.

genuine Omega are another story:

8400: co-axial, 3 hands, no date, (8500 based).

8401: same as 8400 with rose gold rotor and balance bridge (gold models).

8500: co-axial, 3 hands, date.

8501: same as 8500 with rose gold rotor and balance bridge (gold models)

8507: same as 8500 with 007 rotor

8508: same as 8500 but bridges in nivagauss material and 15000 gauss on rotor.

8511: handwound version of 8500 with gold balance bridge.

8520: lady version of 8500 (smaller and little different)

8521: 8520 with gold rotor/bridge for gold watches

8601: date, annual calendar based on 8500

8611: 8601 with gold rotor/bridge

8602: day-date based on 8500

8612: 8602 with gold rotor/bridge

8605: Gmt based on 8500

8615: 8605 with gold rotor/bridge

The 8900 series is then the same logic but it have master co-axial escapement.

Santre for MVP. It was good learning all this.