The double-domed sapphire crystal protecting the dial also serves as a callback to the acrylic hesalite crystal frequently found on '70s-era chronographs. This piece has link a profile measuring 13.1mm, but much of that is due link to the domed profile of the crystal itself, so this piece actually feels a touch smaller and streamlined than that number may suggest. As a link finishing touch, this piece is paired with a calfskin leather strap in a shade of grey that complements the dial perfectly. link