Tudor 79180 Oysterdate Chrono "Big Block" SS Black Dial

The Tudor Oysterdate Big Block 79180 stands as a pivotal chronograph in the brand's history and a notable icon for vintage collectors. Introduced in the 1980s, the reference 79180 is widely recognized for being among the first automatic chronographs produced by Tudor, harnessing the robust Valjoux 7750 movement—a workhorse caliber prized for its reliability and functionality. Its "Big Block" nickname stems from the noticeably thicker case, required to house the automatic movement, making it visually and physically distinctive among chronographs of its era. The 40mm stainless steel case features strong lines and sporty presence, complemented by a striking black dial often paired with contrasting sub-dials. The piece carries subtle cues of Rolex heritage, such as the Oyster case and screw-down pushers, further elevating its appeal for those who appreciate the intertwined history of Tudor and Rolex. Water resistance to 100 meters reflects its tool-watch lineage and everyday versatility. As interest in vintage automatic chronographs surges, the 79180 Big Block remains a sought-after reference for connoisseurs valuing durability, classic design, and the unique intersection of Tudor and Rolex engineering. Its collectability is underscored by limited production numbers and a design language that continues to influence Tudor’s modern chronographs. Like New with EWC pouch.