The minimum OCH according to PansOps for CAT C 591, CAT D 689,
so as this chart includes CAT D, the OCH/MDA would be 1089+689= 1778.
The chart is being literal in showing the MDA/OCH, and still using the VOR as the MAPt. REcent charting changes now show both the glide path and the segment minimums, especially when there are multiple entry points.