CALIBRE H-288 · Swiss Lever Escapement Bench

FIG. 01 TIME SCALE & INSPECTION

FIG. 02 OSCILLATOR FREQUENCY

FIG. 03 MECHANICAL CONTROLS

Axial Disassembly (Exploded) 0%

Assembled Train Full Stack

Mainspring Power Reserve 82% · 49 h

Hairspring Curb Pins (Regulator) +1.4 s/d

FIG. 04 GEAR TRAIN TORQUE FLOW

Barrel 7.4 mN·m

→

4th Wheel 1.00 rpm

→

              15T Escape
              16.0 rpm
            

→

Balance 286°

CHAMBRE HORLOGÈRE · ÉCHELLE 12:1 · LIVE KINEMATICS

DRAG TO ORBIT · SCROLL TO MACRO ZOOM · CLICK STAGES TO INSPECT

FIG. 05 CHRONOSCOPE TIMEGRAPHER COSC SPEC

DAILY RATE +1.4 s/d COSC −4/+6 s/d

AMPLITUDE 286° Lift angle 52.0°

BEAT ERROR 0.1 ms Period 125.0 ms

ESCAPEMENT STEP Tooth #01 12.0° / half-beat

PAPER TAPE TRACE (TICK / TOCK) 28,800 VPH

FIG. 06 ACOUSTIC IMPULSE & BALANCE θ(t)

■ CH1 Acoustic Mic (Unlock · Impulse · Drop) ■ CH2 Balance Arc

FIG. 07 HOW THE SWISS LEVER METERS TIME

15 Club Teeth & Two Synthetic Rubies

Without an escapement, a wound mainspring unspools violently in seconds. The pallet fork locks the 15-tooth escape wheel with two low-friction corundum rubies, releasing exactly 12° per swing of the resonant balance wheel while feeding back a microscopic energy kick to sustain oscillation.

EXPERIMENT: Click 02 Ruby Escapement (0.04×) in the bottom bar to watch the balance roller jewel unlock the entry ruby, slide across the club-tooth impulse plane, and snap onto the exit ruby.