Lemania chronograph, cal. Ch27/Omega 321, 18k gold, 50s

Lemania chronograph in 18k solid gold, NOS condition

Legendary caliber Lemania Ch27/Omega 321 in perfect working condition

Two-tone cream/silver dial, gold indices and hands, giving it an elegant and timeless look

Year circa 1950s

Case size excluding the crown 35mm

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The Lemania CH27 is a renowned chronograph movement that has played a significant role in the history of watchmaking. Developed in the 1940s by the Swiss manufacturer Lemania, the CH27 is celebrated for its precision, reliability, and robust design.

Key Features of the Lemania CH27:

Type: Manual-winding chronograph movement.
Mechanism: It features a column wheel design, which is favored for its smooth operation and responsiveness when starting, stopping, and resetting the chronograph function.
Configuration: Includes a 30-minute counter, an hour totalizer and a small seconds sub-dial, providing essential timing functions.
Dimensions: The movement is known for its relatively compact size, making it suitable for various watch cases.

Historical Significance:

Development: The CH27 was developed during a time when mechanical chronographs were gaining popularity, particularly for their use in sports and aviation. Lemania, with its expertise in producing high-quality movements, aimed to create a reliable and precise chronograph.

Adoption by Brands: The CH27 quickly gained recognition and was adopted by several prestigious watch brands, including Omega, Patek Philippe, and others. Its reputation for accuracy and durability made it a preferred choice for luxury timepieces.

Evolution into Omega 321: In the early 1950s, Omega modified the CH27 to create the Omega 321 movement. This adaptation included enhancements to improve performance and aesthetics, leading to the 321's iconic status, particularly as it was used in the Omega Speedmaster, the first watch worn on the moon.

Legacy: The Lemania CH27 has left a lasting legacy in the world of horology. It is still appreciated by collectors and enthusiasts for its craftsmanship and historical significance. Many vintage watches featuring the CH27 are sought after, reflecting its enduring appeal.

In summary, the Lemania CH27 is a pivotal movement in watchmaking history, known for its reliability and precision. Its influence extends beyond its own production, as it laid the groundwork for the legendary Omega 321 movement and continues to be celebrated by watch aficionados today.