super factory watch v5 version 7 styles 2813 automatic movement wristwatch black 40mm ceramic bezel sapphire glass diving men watches new fa, Slivery;brown

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 is resistant to falling but not abrasion-resistant, so small wear marks are prone to appear adjust the calendar: please do not actively adjust the calendar between 22.00~2.00, this may cause damage to the movement.syi