Clock Choke.

What it is

Gi choke from turtle using circular walking to tighten collar

What you do

TAP URGENCY: MODERATE—clock choke can tighten progressively as it advances

Release immediately when partner taps; the advancing mechanics can accelerate locking

Apply pressure gradually rather than trying to lock position all at once

Communication helps partner understand progression of mechanical tightening

Ensure adequate space to prevent collision injuries during entry and positioning