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DA MAN - Caliber - - ESSENTIALS -

• A moonphase com­pli­ca­tion tracks the phase (new, full, half or quar­ter ) of the moon. The phases of the moon are shown on a ro­tat­ing disc through a half-cir­cle/ • “bo­som” aper­ture or on a ra­dial aper­ture which uses a con­ven­tional hand. The ex­act length of the lu­nar cy­cle (29 days, 12 hours, 44 min­utes and 3 sec­onds) cre­ates a chal­lenge in terms of ac­cu­racy. Com­mon moonphase dis­plays use a 59-tooth driv­ing wheel and needs to be ad­justed ev­ery 2.5 years; re­fined ones with a 135-tooth wheel can stay ac­cu­rate for more than 120 years.

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