As Listed by the STA

Black Watch ITI 207
Black Watch (Band Plaid) ITI 396
Black Watch (Course Kilt) ITI 1563
Black Watch (Fashion Variant) ITI 3698
Black Watch (Pendleton) ITI 3696
Black Watch (Piper) ITI 3095
Black Watch (Smallest Sett) ITI 3695
Black Watch Dress ITI 3094

These are those recorded by the STA.

That's all I am claiming, that the Pattern on the Stillwater looks as if it is the "smallest sett" pattern of the Black Watch.