Fashion

In a traditional factory set up, it isn't just one person that makes a shirt. There are various stages assigned to different teams within the factory. Broadly speaking, it's broken down into: cutting, sewing, buttoning, pressing, and quality control/finishing.

That split across different teams makes tracking the hours puts into individual items tricky. Shirts are cut in batches for instance - anywhere up to 10 layers of fabric (and therefore 10 shirts) in one go. Under the machines, they're obviously done individually. My best guess is that each shirt takes about 1-1.5 hours across the various processes.

Bespoke shirts are cut individually, which is why they cost so much more. That, and the fact you're getting a bespoke pattern made and inevitably using very expensive fabrics.