YouTube video can be played by clicking on the arrow in photo gallery or here: https://www.youtube.com/watch?v=kV_2Jz42xxg
The Miyota movement's self-winding rotor is silver. This silver rotor can be changed to golden and this watch’s standard crown can be replaced with the one shown in the picture for an additional $15.
Diameter: 40.5mm excluding crown Thickness: 10.75mm Lug width: 20mm Movement: Miyota 8219, 21-jewels, 5.67mm thick Crystal: sapphire Case back: see-thru display, shark and wave pattern printedBand Material: cowhide leather with butterfly deployment buckleCase material: 316L stainless steelDial color: green, gray, red, light blue, brown