Lederer 3 Times Certified Observatory Chronometer

2024 GPHG OFFICIAL WINNER "CHRONOMETRY CATEGORY"

Built on the foundation of the esteemed COSC certified Central Impulse Chronometer, the Lederer 3 Times Certified Observatory Chronometer takes things a giant leap further with a rigorous testing and certification at three more of the top institutions regarded as experts in the field of precision testing.

A limited numbered edition of 25 pieces
Ref. 9012-COC

The Central Impulse Chronometer stands out with its minute hand, which follows the precise rhythm of the remontoire d’égalité every 10 seconds. Displayed on a unique scale divided into six steps, each representing a 10-second interval, the minute hand completes a full rotation every 60 seconds, guided by a tiny pointer that ensures perfect synchronization with the remontoir.

The solid silver dial is crafted using a traditional heating process that undergoes multiple boiling baths and reheating to achieve a pure white color, reminiscent of freshly fallen snow. This dial, adorned with the iconic "V" symbol and featuring the seconds dial's meridian-inspired coordinates, pays homage to the legacy of chronometric excellence vital for determining longitude at sea. The Central Impulse Chronometer is a tribute to both precision and savoir-faire, combining technical mastery with artisanal craftsmanship, resulting in a timepiece that collectors will find both exceptional and timeless


TECHNICAL SPECIFICATIONS
Movement
- Manual winding
- Chronometer (COSC)
- Swiss made
Functions
Hours, minutes, seconds
Power reserve
40 hours
Frequency
12,600 vph
Case
- 904L polished stainless steel case
Measurements
- 44 mm diameter
- 12 mm height
Dial
- Frosted solid silver dial
Water resistance
30 m


Oster Jewelers is an Authorized Lederer Watch Retail Partner