Hi. Long-time lurker, first-time poster. Thanks to all for creating and keeping this forum vibrant. I'm getting close to deciding to buy a vintage Speedmaster. Currently I'm fixated on the 345.0808 display-back model and love the look of the copper 863 movement, as opposed to the ones that are a more yellow-gold color. (For example, like this one that sold here two years ago.) I'm having difficulty determining which vintages of the 863 had this coppery color, and I'm not sure how exactly it comes across in photos, so it's hard to determine from some photographs what the color of the movement is. Am I only looking for one of the 999 watches from 1985? Or are there other "copper" 863s? Thanks!