Hermle HM261-030/45 Mechanical Clock Movement

The Hermle HM261-030/45 is a high-quality German mechanical clock movement engineered for traditional pendulum wall and mantel clocks. This classic 8-day chain-driven movement delivers reliable timekeeping and authentic mechanical performance for restoration projects and clock replacement needs.

Featuring a bim-bam strike, the movement produces a distinctive two-tone strike pattern at every hour and single strike at the half-hour. The strike is produced by three hammers acting on a set of chime rods or a gong assembly, giving your clock an engaging and traditional sound.

Designed for a 45 cm pendulum, this movement includes the movement assembly with chains, suspension spring, leader, and hand nut — making installation straightforward for experienced clockmakers and hobbyists. The movement’s compact, square profile and standard mounting allow it to fit into many wall and mantle clock cases.

Key Features & Specifications

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  8-day mechanical operation — winds once per week

  
  


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  Chain-driven weight operation for consistent power delivery

  
  


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  Bim-bam strike pattern (half-hour single, full hour double)

  
  


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  Three-hammer strike assembly for traditional sound

  
  


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  Designed for 45 cm pendulum length

  
  


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  Includes chains, suspension spring, leader, and hand nut

  
  


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  German craftsmanship and precision engineering