Your watch — now with micro-adjust.

Add half-hole micro-adjustment to your existing strap setup. No hardware swap required.

Available in 16 / 18 / 20 / 22mm Installs in under 2 minutes ⭐ 4.7★ from 60+ verified customers

How It Works

  • 1. Slide the M4 onto your strap
  • 2. Reattach your existing buckle or deployant
  • 3. Adjust between two positions (3mm apart)

Will It Work For Me?

  • ✅ Tang buckles (spacers included)
  • ✅ Most spring-bar deployants
  • ✅ Leather, rubber & fabric straps
  • ❌ Omega-style deployants
  • ⚠️ Screw-attached deployants — chat with us below

Every M4 ships with a spring bar and spacer kit.

Customers are saying

4.61 ★ (90)
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