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Coverage includes pocket watches, wrist watches, stop watches, and message center clocks, along with scope, operational purpose, and item characteristics. It explains manufacturing and authorized case types, standardized sizes, and distinctions among timing instruments and recorder terminology, including specific notes on message center clock construction and markings used for identification.",{"@graph":69,"@context":121},[70,84,104],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/tm-9-1575-ordnance-maintenance-wrist-watches-pocket-watches-stop-watches-and-clocks/664564/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":98,"encodingFormat":97,"isAccessibleForFree":99,"interactionStatistic":100},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/tm-9-1575-ordnance-maintenance-wrist-watches-pocket-watches-stop-watches-and-clocks/664564.png","ImageObject",300,407,{"name":92,"@type":93},"Asher","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-29",true,{"@type":101,"interactionType":102,"userInteractionCount":8},"InteractionCounter",{"@type":103},"ViewAction",{"@type":105,"mainEntity":106},"FAQPage",[107,113,117],{"name":108,"@type":109,"acceptedAnswer":110},"What is the purpose and scope of TM 9-1575 for maintenance personnel?","Question",{"text":111,"@type":112},"TM 9-1575 is published to provide information and guidance for ordnance maintenance personnel, including instructions for inspection, disassembly, assembly, maintenance, and repair of specified military timepieces.","Answer",{"name":114,"@type":109,"acceptedAnswer":115},"How are pocket watches and wrist watches described in the manual?",{"text":116,"@type":112},"The manual states pocket watches are American-manufactured open-face types and are all 16 size. Wrist watches are American-manufactured and, while multiple case types existed, wrist watches are issued in a waterproof case with standard sizes of 101/2 ligne, 6/0, and 8/0.",{"name":118,"@type":109,"acceptedAnswer":119},"What does the manual say about stop watches and time-interval recorders?",{"text":120,"@type":112},"The manual explains that the terms “stop watch” and “time-interval recorder” are used interchangeably to designate instruments indicating time intervals of minutes, seconds, and fractions of a second, and that such instruments no longer function as ordinary timepieces for telling time.","https://schema.org",{"og:url":83,"og:type":123,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":125,"canonical":83},"index,follow",{"doc_id":127,"site_id":62},664564,1793259453,{"code":4,"msg":5,"data":130},{"doc_id":127,"user_id":131,"nickname":92,"user_avatar":132,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":133,"file_id":134,"file_url":135,"file_type":136,"file_size":137,"view_count":8,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":138,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":128,"read_time":143},687197207639,"https://ap-avatar.wpscdn.com/davatar_a8503ba1806abce46bf441b54a3ca4cd","ORDNANCE MAINTENANCE  \nWRIST WATCHES,POCKET WATCHES,STOP WATCHES,AND CLOCKS  \nWRIST WATCHES,POCKET WATCHES,STOP WATCHES,AND CLOCKS  \n6 APRIL 1945  \nWAR DEPARTMENT  \nTM 9-1575,Ordnance Maintenance:Wrist Watches,PocketWatches,Stop Watches,and Clocks,is published for the informationand guidance of all concerned.  \nBY ORDER OF THE SECRETARY OF WAR:  \nG.C.MARSHALL,Chief of Staff.  \nOFFICIAL:  \nJ.A.ULIO,  \nMajor General,The Adjutant General.  \nDISTRIBUTION:AAF(10);AGF(10);ASF(2);S Div ASF(1);Dept(10);AAF Comd(2);Arm &Sv Bd(2);TechSv(2);SvC(10);PC&S(1);PE,9(5);Dist O,9  \n(5);Dist Br O,9(3);Reg O,9(3);Establishment,9(5);Decentralized Sub-0,9(3);Gen &Sp Sv Sch(10);USMA(20);A(10);CHQ(10);D(2);AF  \n(2);T/O &E:9-7(3);9-8(3);9-57(3);9-76(2);9-318(3).  \n(For explanation of symbols,see FM 21-6.)  \nCONTENTS  \nParagraphs Page  \nCHAPTER 1. GENERAL………………………………………………1-441-83  \nSECTION   \nI. Introduction…………………………………………1-41-3  \nII. Functional description………………………5-113-19  \nIII. Inspection……………………………………………12-1420-22  \nIV. General maintenance …………………………15-1623-39  \nV. Cleaning and lubricating…………………17-1840-43  \nVI. Trouble shooting, adjustment, and  \nrepair …………………………………………………19-4444-83  \nCHAPTER 2. PoCKET AND WRIST WATCHES……45-6884-183  \nSECTION   \nI. Characteristics of pocket and wrist  \nwatches …………………………………………4584  \nII. Hamilton pocket watch,16 size,  \n21-jewel, railroad grade, model  \n992B………………………………………………………46-4884-103  \nIII. Elgin pocket watch, 16 size,7- or  \n17-jewel………………………………………………49-51103-117  \nIV. Waltham pocket watch, 9- or 17-  \njewel………………………………………………………52-54118-131  \nV. Hamilton wrist watch,6/0 size,17-  \njewel, model 987A…………………………55-57131-141  \nVI. Elgin wrist watch,8/0 size,7- or  \n15-jewel……………………………………………58-62141-158  \nVII. Waltham wrist watch, 6/0 size,9-  \njewel, model 10609 and 6/0 size,  \n17-jewel, model 10617…………………63-65158-169  \nVIII. Bulova wrist watch, model 10 AK,  \n101/2 ligne size, 15-jewel, water-  \nproof case ………………………………………………66-68169-183  \nCHAPTER 3.ELGIN STOP WATCHES ……………………69-74184-196  \nSECTION  \nI. Characteristics of Elgin stop watches 69-70 184-185  \nII. Trouble shooting, adjustment, and  \nrepair of stop watch………………………71185-187  \nIII. Elgin stop watches, type B, class 15 72-74 188-196  \nCHAPTER 4. MESSAGE CENTER CLOCK M1……………75-77197-215  \nCHAPTER 5. REFERENCES……………………………………………78-80216  \nINDEX……………………………………………………………………………………………217-222  \nTM 9-1575  \n0RDNANCE MAINTENANCE-WRIST WATCHES,POCKET WATCHES,STOP WATCHES,AND CLOCKS  \nRA PD 77447  \nFigure 1-Pocket Watch With Ordnance Markings  \nRA PD 77421  \nFigure 2-Diameter of Pillar Plate of a Watch  \nCHAPTER 1  \nGENERAL  \nSection I  \nINTRODUCTION  \n# 1.  SCOPE.*\n\na.This manual is published for the information and guidance ofordnance maintenance personnel.It contains detailed instructions forinspection,disassembly,assembly,maintenance,and repair of pocketwatches,wrist watches,stop watches,and message center clocks,andis supplementary to those in the Field Manuals and Technical Man-uals prepared for the using arms.This manual does not contain in-formation which is intended primarily for the using arms,since suchinformation is available to ordnance maintenance personnel inTM 9-575.  \n# 2.  CHARACTERISTICS.\n\na.The materiel covered in the manual consists of military time-pieces issued to the using arms and services for timing operations.  \nb.  Pocket Watches.Pocket watches are of American manufac-ture.All pocket watches are of the open-face type.They are all 16size.  \nc.  Wrist Watches.Wrist watches are all of American manufac-ture.Several types of cases have been issued.Cup type,and screwbezel and back type had been issued,but now all wrist watches arebeing issued in the waterproof case.Standard sizes in use are 101/2ligne,6/0,and 8/0.Wrist watches are authorized for issue to allbranches of the service.  \nd.Stop Watches.The term\"stop-watch”or \"time-intervalrecorder”is used interchangeably,to designate an instrument usedprimarily to indicate time intervals of minutes,","cbCaiunsmcMzLLB0","https://ap.wps.com/l/cbCaiunsmcMzLLB0","pdf",14937992,227,"English","# CHAPTER 1. GENERAL\n## I. Introduction\n## II. Functional description\n## III. Inspection\n## IV. General maintenance\n## V. Cleaning and lubricating\n## VI. Trouble shooting, adjustment, and repair\n# CHAPTER 2. PoCKET AND WRIST WATCHES\n## I. Characteristics of pocket and wrist watches\n## II. Hamilton pocket watch, 16 size, 21-jewel, railroad grade, model 992B\n## III. Elgin pocket watch, 16 size, 7- or 17-jewel\n## IV. Waltham pocket watch, 9- or 17-jewel\n## V. Hamilton wrist watch, 6/0 size, 17-jewel, model 987A\n## VI. Elgin wrist watch, 8/0 size, 7- or 15-jewel\n## VII. Waltham wrist watch, 6/0 size, 9-jewel, model 10609 and 6/0 size, 17-jewel, model 10617\n## VIII. Bulova wrist watch, model 10 AK, 101/2 ligne size, 15-jewel, waterproof case\n# CHAPTER 3. ELGIN STOP WATCHES\n## I. Characteristics of Elgin stop watches\n## II. Trouble shooting, adjustment, and repair of stop watch\n## III. Elgin stop watches, type B, class 15\n# CHAPTER 4. MESSAGE CENTER CLOCK M1\n# CHAPTER 5. REFERENCES\n# INDEX","[{\"question\":\"What is the purpose and scope of TM 9-1575 for maintenance personnel?\",\"answer\":\"TM 9-1575 is published to provide information and guidance for ordnance maintenance personnel, including instructions for inspection, disassembly, assembly, maintenance, and repair of specified military timepieces.\"},{\"question\":\"How are pocket watches and wrist watches described in the manual?\",\"answer\":\"The manual states pocket watches are American-manufactured open-face types and are all 16 size. Wrist watches are American-manufactured and, while multiple case types existed, wrist watches are issued in a waterproof case with standard sizes of 101/2 ligne, 6/0, and 8/0.\"},{\"question\":\"What does the manual say about stop watches and time-interval recorders?\",\"answer\":\"The manual explains that the terms “stop watch” and “time-interval recorder” are used interchangeably to designate instruments indicating time intervals of minutes, seconds, and fractions of a second, and that such instruments no longer function as ordinary timepieces for telling time.\"}]","TM 9-1575 - Ordnance Maintenance - Wrist Watches, Pocket Watches, Stop Watches, and Clocks | PDF",572]