- Dimensions: 44 mm X 14 mm
- Movement: Shanghai 7750 automatic mechanical movement
- Functions: hours, minutes, seconds, timing
- Dial: blue dial with white dial, silver hour and minute hands
- Case: 316L stainless steel case
- Ytterbium: sapphire mirror
- Bracelet: 316L stainless steel bracelet
- Buckle: folding clasp
- Bottom cover: dense bottom
- Bezel: blue ceramic ring
- Waterproof: 30 meters
Yacht-Master II 16680 White Dial：
Compared with the Yacht-Master II watch, the diameter of the Yacht-Master II watch has been increased from 40 mm to 44 mm.
Yacht-Master II 16680 Black Dial :
Yacht-Master II is specially developed for professional navigators. It is the world’s first watch equipped with a patented mechanical memory setting countdown timer function, allowing sailing race participants to fully synchronize their start timing with the official timing.