This SEIKO Black Boy, model 7548-7000, was likely manufactured around August 1979. The bezel rotation is a bit stiff due to its age, but it is a rare working item. The case is silver/black, and the belt is black.
Rolex GMT-Master II "Green Arrow," Ref. 116710LN, CPO. This Rolex GMT-Master II "Green Arrow" is a Certified Pre-Owned example by Rolex, dated 2025, in excellent condition. It features a 40mm stainless steel case, black dial, black Cerachrom bezel, the signature green-tipped GMT hand, Oyster bracelet, and a date window at 3 o'clock.