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winding: the internal function of the new mechanical watch is almost zero, and it needs to be manually wound before wearing it for the first time stainless steel wear: stainless steel is resistant to falling but not abrasion-resistant, so small wear marks are prone to appear error:the error of the mechanical watch is within 24 hours and 30 seconds, which belongs to the normal error range adjust the calendar: please do not actively adjust the calendar between 22.00~2.00, this may cause damage to the movement womens watch date,bluetooth running watch,bangle style ladies watches,racing electronics,outdoor electronics,modern black clocks,tactical sports watch,water selling,red leather straps,jack rubber.syi