Thank you for the excellent question which can easily be settled by faith using Scripture.So its your belief that no more watchman exist today, or prophets, apostles, evangelist's, pastors or teachers?
The New Testament does not display the notion that so called watchmen are appointed unto the church. Although watchmen look like a good idea during prophetic preaching events, they were purposefully excluded from that list of offices. I guess they could be penciled into the text.
Regards.