are “Level 7” qualifications … a PGDip is two thirds (120 credits), with a full Master's being 180?

Yes, your understanding of the credit structure is accurate. Within the UK Regulated Qualifications Framework, a full Master’s degree typically comprises 180 credits at Level 7. A Postgraduate Diploma (PGDip) represents the first two-thirds of this journey, equating to 120 credits. The OTHM Level 7 Diploma in Strategic Management and Leadership Online – MBA Top-Up Route (120 Credits) aligns precisely with this PGDip volume. It does not include the final 60-credit dissertation required for a full Master’s. Instead, it serves as the foundational academic component. Graduates use these 120 credits to apply for the final dissertation module at a partner university, completing the 180-credit requirement for an MBA. This modular approach allows working managers to secure the core strategic management knowledge first, then commit to the final research phase separately.