
Editorial
Henrik Lund
Movement Engineer
Henrik dissects calibers — from ETA 2824 to Patek's 240. Former ETA engineer, he explains what makes a movement good, reliable, or overrated.
Articles by Henrik Lund (4)
zenith
Why Zenith's El Primero beats at 36,000 vph: precision vs power
Zenith's 36,000 vph El Primero delivers 1/10th second chronograph precision at the cost of reduced power reserve and accelerated wear. Here's the engineering reality behind the 5Hz frequency choice.
May 7, 2026
omega
Omega Co-Axial vs. Swiss Lever: Measured Friction Reduction Claims
Engineering analysis of Omega's 80% friction reduction claim in co-axial escapements. Geometry changes, chronometric data, and service interval documentation.
May 2, 2026
Gyromax vs Glucydur: Balance Wheel Engineering Across Manufactures
Patek's Gyromax variable-inertia screws versus Rolex's Microstella on Glucydur: why these balance wheel architectures reveal opposing philosophies on thermal compensation, regulation precision, and serviceability.
April 24, 2026
zenith
Why Zenith El Primero Beats at 36,000vph: Physics and Trade-offs
The El Primero's 5Hz oscillation enables 1/10th-second precision, but at serious mechanical cost. An engineer's analysis of why Zenith chose 36,000vph and why so few followed.
April 20, 2026