MRC:
A feature of the item of supply which must be specifically recorded when the reference number covers a range of items.ZZZY
Reference Number Differentiating Characteristics:
As differentiated by dial size, stud location, pointer type, adjustability, pointer marking, pointer color, case material, case surface treatment, depth, diameter, material, surface treatment, bezel type, protective crystal material, connection quantity, connection type, connection location, connection size, stud quantity