There was no Yellow - only a black dial / or orange dial.
The PRS3 had a steel case / the PRS4 had a black PVD case.
The PRS11 was an automatic with plongeur hands.
And there were 25x PRS3 quartz made with dreadnought hands.
The weight and the thickness is less bulky with the older Broadarrow version.
Dimension are about 1mm less than the current PRS3, or PRS3 LE.
As a motor bike rider, the Broadarrow always sat under the sleeve of my jackets better than the LE.
Please excuse the colours and the low resolution of these old pictures.