Sergeant Andy Sheldon also made reference to applicants’ breasts and cleavage, the hearing was told.
The two-day hearing at the force headquarters in Birmingham was told the Sandwell-based officer made a number of inappropriate and discriminatory comments towards colleagues.
Panel chairman Harry Ireland said it was proven that Sgt Sheldon had made unacceptable sexist remarks, which amounted to misconduct.
He will now receive management advice.
The hearing was told how sexist remarks were made by Sgt Sheldon when the force was recruiting for civilian posts.
Sgt Sheldon was reported to have said, in conversation with an inspector, that a number of female applicants were not suitable because their breasts were not big enough or their skirts short enough.
The comments were also witnessed by Pc Claire Winchurch who told the panel there had been several references to breasts, cleavage and being ‘an ugly munter’.
“I didn’t think it was appropriate but I didn’t get offended personally,” she said.
“He was old school, not strict like some. Nobody came up and said it offended them.”
Sgt Sheldon also faced an allegation of making racist remarks toward a colleague.
However, the panel ruled this was not proven after hearing evidence.
Sgt Sheldon had denied making any inappropriate or discriminatory comments towards colleagues.
A West Midlands Police spokesman said: “West Midlands Police demands the highest standards of professionalism, integrity, and conduct from all police staff and police officers at all times.
“We take any allegations of alleged racism and sexism within our organisation very seriously.”
Misconduct hearings are held to present the facts of the case and allow officers to give an explanation of their conduct and the circumstances surrounding the allegation.
Figures released in October showed that conducting probes into alleged police misconduct in the West Midlands took the force an average of 250 days to complete.
In the 12 months from May last year there were 12 police misconduct hearings held in public.
Nine resulted in dismissal, one misconduct, one final written warning and one warning.
Five of the cases were a breach of discredible conduct.
There were six misconduct hearings held in private in the same period.