Béguin, Maurice, <br/><br/>
Methods of regulation :  how to select the most adequate method of regulation / 
Maurice Béguin. 
 - 75 pages :  illustrations ;  21 cm +  6 plates 
 - A Portescap manual .
 - Portescap manual. .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Clocks and watches--Design and construction--Handbooks, manuals, etc.<br/>Clock and watch making--Handbooks, manuals, etc.
<br/><br/><label>Subjects--Index Terms: </label>escapement technical Manual Watch (general) Switzerland Adjust 
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Handbooks and manuals.