There are no benefits in terms of length of stay on the Czech territory.
Third-country nationals subject to a visa requirement If the length of your intended stay on the Schengen territory does not exceed three months within a six-month period, you have to be in possession of a valid Schengen visa or a residence permit issued by a Schengen Member State.
Rules governing travelling through Schengen states are nearly equivalent to rules governing travelling through EU states.
The main difference concerns the abolition of border checks when crossing internal Schengen borders.
If you posess a valid residence card issued by the Czech Republic or any other Member State, you are exempted from the visa requirement in all Member States.
You do not need any visa to enter the Czech Republic or any other Member State.
For stay in the Czech Republic exceeding three months within a six-month period, either a (long-term or permanent) residence card or a Czech national visa (long-stay visa - Category D) is required.
Holders of Czech long-stay visa (Category D) may spend up to 3 months in any half-year on the territories of other Schengen states.
More detailed and up-to-date information may be found on web pages of the Ministry for Foreign Affairs and the Ministry of the Interior.In addition, they can spend more days on the Czech territory on the basis of the respective bilateral agreement.Length of permitted visa-free stay on the territory of the Czech Republic may differ depending on the provision of the particular agreement which may be divided into the following groups: Example: Nationals of Argentina may stay on the Czech territory for 3 months.The agreement does not contain any time limit (e.g.6 months) within which the length of individual stays counts.