A que se refieren con calendario, dia de la semana o dia del mes. Porque el 6000 lleva dia del mes y el 6501 las dos cosas.
CALIBRE 6501
Description
In the mid sixties, Citizen launched the medium-sized selfwindig caliber series 65, which contained the movements
6000 (without weekday indication) and 6501 (with weekday indication).
The caliber 6501 is shown here; it contains a ball-beared rotor, which winds in both direction and a spring-less ratched mechanism. The large Glucycur balance is pivoted in the inhouse Parachoc protection system.
All gears are located under one single plate, which makes servicing works a little difficult.
The date changes slow over almost two hours, but it can be quickset in the middle crown position.
Technical data
ManufacturerCitizenCaliber6501Number of jewels21EscapementAnchor with palletsBalanceGlucydurShock protection(s)Parashock 1 (Citizen)Balance cock directioncounterclockwiseHairspring studmoveableRegulator typeHairspring keyFeaturesSCD,QG,JG,RDR,AUTFunctionsHour, minute, second, day, weekday, selfwindingBeats per hour26100Size10'''
CALIBRE 6000
Description
In the mid sixties, Citizen launched the medium-sized selfwindig caliber 6000. It contains a ball-beared rotor, which winds in both direction and a spring-less ratched mechanism. The large Glucycur balance is pivoted in the inhouse Parachoc protection system.
All gears are located under one single plate, which makes servicing works a little difficult.
The date changes slow over almost two hours, but it can be quickset in the middle crown position.
How rugged this movement is, can be seen on the traces and dirt on it. Nevertheless, the rotor winds as smooth, as on the first day and never touches the case or the plates.
Technical data
ManufacturerCitizenCaliber6000Number of jewels21EscapementAnchor with palletsBalanceGlucydurShock protection(s)Parashock 1 (Citizen)Balance cock directioncounterclockwiseHairspring studmoveableRegulator typeHairspring keyFeaturesSC?,QG,RDR,AUTFunctionsHour, minute, second, day, selfwindingBeats per hour21600Size101/2'''Production time1966 - ????