TRIPLE CERTIFIED OBSERVATORY CHRONOMETER

 

The Timeless Connection Between Chronometry and Navigation

Historically, precise timekeeping was essential for navigators charting their courses in the open seas, where every second counted. Just a one-second deviation could translate into a positioning error of nearly 500 meters at the equator. The implications are surprising: a COSC-certified watch can allow for deviations that, over time, can lead to miscalculations of up to 70 kilometers after a ten-day sailing.

LEDERER chronometer overcomes such challenges, equipped with two remontoirs that ensure accurate time is maintained throughout the power reserve without the well-known variation in accuracy caused by the mainspring.

 

Central Impulse Chronometer
CIC 9012.10.710

Movement
Mechanical with manual winding
Double wheel escapement with central impulses (CIC)
Frequency: 21,600 vibrations per hour (3 Hz)

Features
Two independent barrels
Two independent gear trains
Two constant-force mechanisms
Two independent escapement wheels
Power reserve: min. 38 hours

Case
904L highly corrosion-resistant stainless steel
Polished finishing with an exceptional luster
Diameter: 44mm
Thickness: 12.2mm
Case back: Open, sapphire crystal with anti-reflective treatment.
Water Resistance: 3 ATM

Dial
Made in-house from solid sterling silver

Limited edition
Each of the 8 timepieces delivered with three observatory certificates

Price
CHF 146’000.- (excluding VAT)