Top Replica: Rolex Green Submariner! Lastly, let's focus on the solid center shaft. After thorough discussions, watch appraisal experts have identified the solid center shaft as the simplest way to distinguish between a replica and an original watch. As the leading manufacturer of Submariners, N Factory has once again reshaped the understanding of watch appraisers. This is the solid center shaft Rolex Submariner from N Factory V10S, a perfect 10 out of 10. It can easily be considered one of the top replicas of 2020. Check out the actual photos of this high-end replica!