The Apple Watch Leather Link was an Apple Watch band released in 2021. The design is similar to the previous Leather Loop design, but while the Leather Loop included a metal “eye,” the Leather Link is secured solely by magnets.
Apple describes the Leather Link:
“The Leather Link features handcrafted Roux Granada leather made in France. The strap elegantly wraps around the wrist and magically attaches with flexible moulded magnets that gently flex to help maintain a secure, comfortable fit throughout the day.”
The Leather Link came in sizes including 40mm in S/M (130–160mm wrists) and M/L (140–180mm wrists), and 44mm in S/M (140–180mm wrists) and M/L (165–205mm wrists).
This example is Sequoia Green to fit the 45mm Apple Watch and fits wrists in the M/L size range.