Landeron Caliber 149 – A Three-Register Chronograph Built for Function and Affordability

The Landeron Caliber 149 is a manual-winding mechanical chronograph movement developed by Charles Hahn & Cie (Landeron) as part of the extended Landeron 48 family. Introduced in the mid-20th century, the 149 builds upon the cam-actuated chronograph system pioneered by the 48 but expands its functionality with a tri-compax layout, including a 12-hour chronograph counter.

This made the Caliber 149 a practical solution for consumers who needed extended timing functionality—especially for aviation, motorsport, and long-duration event tracking—without the cost of a column-wheel movement.

Technical Specifications

• Movement Type: Manual-winding chronograph

• Base: Landeron 48 family

• Chronograph Control: Cam-actuated switching system, horizontal clutch

• Jewels: 17

• Frequency: 18,000 vibrations per hour (2.5 Hz)

• Power Reserve: Approx. 40–42 hours

• Diameter: Approx. 31 mm

• Height: Approx. 6.9 mm

• Functions:

  • Hours

  • Minutes

  • Small running seconds (at 9 o’clock)

  • 30-minute chronograph counter (at 3 o’clock)

  • 12-hour chronograph counter (at 6 o’clock)

  • Central chronograph seconds

Key Features

• Tri-compax layout: Unlike the bi-compax design of earlier Landeron calibers, the 149 features three subdials, making it a full-function chronograph capable of tracking up to 12 hours.

• Cam switching system: A cost-effective alternative to column-wheel chronographs, the cam-actuated mechanism allows for smooth start/stop/reset functionality with fewer moving parts.

• Pusher operation:

  • Top pusher (2 o’clock): Start and stop the chronograph

  • Bottom pusher (4 o’clock): Reset the chronograph

Watch Brands Using Landeron 149

The Landeron 149 was employed by a variety of mid-range Swiss brands during the 1950s, 60s, and early 70s. It powered chronographs intended for both professional and consumer use, offering extended timing capabilities at an affordable price. Some of the brands that used this caliber include:

• Baylor

• Croton

• Helbros

• Tradition (Sears Roebuck label)

• Arsa

• Mortima

• Orator

These watches were often styled with sporty dials, large pushers, and marked tachymeter or telemeter scales. Case sizes typically ranged from 36 to 38 mm, with both stainless steel and gold-plated versions available.

Servicing and Reliability

As part of the Landeron 48 family, the 149 shares many components with its siblings, making it relatively easy to service. Parts can often be sourced from donor movements, and many vintage watchmakers are familiar with cam-switching chronograph systems. While the pusher feel may lack the refinement of column-wheel movements, the mechanism is rugged, efficient, and long-lasting.

With proper care, Landeron 149-powered watches can still perform reliably today, making them an excellent option for collectors of vintage chronographs.

Conclusion

The Landeron Caliber 149 is a dependable and functional three-register chronograph movement that offered extended timekeeping capabilities at a modest price. With its cam-switching system and tri-compax design, it brought professional-level features to the wrists of everyday users. Today, it remains a respected and accessible choice for enthusiasts seeking a well-balanced vintage chronograph with historical importance and mechanical charm.