Short answer: stock quartz-heavy, add a small mechanical/automatic selection. Quartz watches held about 71% of the global watch market by type in 2025 (IMARC Group), and that is where mainstream retail and e-commerce volume lives. Mechanical and automatic watches carry higher margins and stronger gift appeal but move in smaller volumes and need more customer education. Here is the full comparison for wholesale buyers.

Side-by-side comparison

Market share source: IMARC Group Watch Market Report, 2025.

What quartz does better

1. Accuracy at low cost. A quartz movement keeps better time than a mechanical movement costing ten times more.

1. Simplicity for the end customer. No winding, no setting ritual, no servicing surprise — the top reason fashion buyers choose quartz.

1. Lower after-sales burden. Battery changes are cheap and universal; mechanical service requires a watchmaker.

What mechanical does better

1. Perceived value. An exhibition caseback showing the movement justifies a higher retail price.

1. Gift appeal. "It's mechanical" is a story, and stories sell gifts.

1. Margin per unit. Fewer sales, but each sale earns more.

A practical stocking ratio for fashion watch sellers

A catalog proven to work across many markets: 80–90% of SKUs in quartz (sports chronographs, business models, minimalist designs, women's fashion) and 10–20% in automatics positioned as premium gift options. This mirrors the demand structure of the market data while capturing the margin upside of mechanical pieces.

How to verify quality before committing

• Quartz: check a sample's daily rate against the ±15–30 s/month benchmark; verify the movement brand on the spec sheet.

• Automatic: wind the sample and observe power reserve (a healthy automatic runs 36–48+ hours from a full wind); listen for smooth rotor action.

Reference sources

1. IMARC Group, Watch Market Report (quartz 71% / mechanical 29% type share, 2025): imarcgroup.com

1. Watches Factory product catalog — quartz and automatic models: watches-factory.com/Products