Rolex Explorer II ref. 216570 cal. 3187 on the watchmakers bench A closer look in detail at the dial and movement inside the Rolex Explorer II caliber 3187 automatic watch. Main features of this Explorer II include the highly notocable 24-hour hand as a second time zone indicator. The movement cal. 3187 has been equipped with a parachrom hairspring and paraflex shock absorbers for a great resistance to impact. Captured at Manhattan Time Service watchmaking. https://www.watchrepairny.com/rolex-wa

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