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National Stock Number:
6645-00-664-4665
Federal Supply Class:
6645
National Item Identification Number:
006644665
Description:
CHRONOMETER
Detail:
AN INSTRUMENT FOR PRECISELY DETERMINING TIME, MANUFACTURED TO CLOSE TOLERANCES TO ASSURE THE TIME-KEEPING QUALITIES OF DEPENDABILITY AND CONSISTENCY OF RATE. THESE QUALITIES ARE ACCURATELY ASCERTAINED BY COMPARISON WITH MORE EXACT DEVICES OR BY ASTRONOMICAL METHODS SO THAT THE ACCUMULATED ERROR MAY BE TAKEN INTO ACCOUNT WHEN DETERMINING TIME. ITS USUAL USES ARE TO INDICATE TIME FOR NAVIGATIONAL PURPOSES, AND TO SERVE AS A REFERENCE FOR LESS ACCURATE TIMEPIECES. IT IS USUALLY PROVIDED WITH A WINDING INDICATOR DIAL AND IS USUALLY MOUNTED IN GIMBALS TO MAINTAIN THE INSTRUMENT IN A LEVEL POSITION. MAY CONSIST OF A SPRING DRIVEN OR OTHER TYPE OF MOVEMENT WHICH IS CAPABLE OF EXACTING PERFORMANCE WITHOUT REGULATION THROUGHOUT THE NORMAL RANGE OF ROOM TEMPERATURES. NOT DESIGNED FOR CARRYING ON THE PERSON.
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Manufacturer Information:
| 37615 | 26992 | HAMILTON WATCH CO INC | | 88021-1394 | 26992 | HAMILTON WATCH CO INC | | JANW1157 | 81350 | JOINT ARMY-NAVY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| BACKGROUND COLOR | SILVER | | CARRYING CASE | PROVIDED | | CASE MATERIAL | NICKEL SILVER | | CASE SURFACE TREATMENT | FINISH, SATIN | | CORRECT TIME RESET TYPE | STEM | | CRYSTAL TYPE | PLASTIC | | DIAL SCALE MARKING LUMINOSITY | NONLUMINOUS | | ESCAPEMENT TYPE | LEVER REGULATED | | HAND COLOR | BLUE, DARK | | HAND DESIGNATION | HOUR TOTALIZING HAND AND MINUTE TOTALIZING HAND AND SECOND INDICATOR HAND | | HAND QUANTITY | 3 | | HAND TYPE | SWEEP AND ECCENTRIC | | INSCRIPTION COLOR | BLACK | | JEWEL QUANTITY | 21 | | LUMINOUS NUMERAL | NOT INCLUDED | | LUMINOUS HAND | NOT INCLUDED | | MAXIMUM RUNNING TIME | 36.000 HOURS | | MOUNTING METHOD | PADDED CASE | | MOVEMENT SIZE DESIGNATION | 35 | | SCALE NAME | 12 HOUR | | WINDING METHOD | STEM | | TIME TYPE | SIDEREAL |
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