Why does the speedo and other gauges turn brown but the clock stays nice?

[bull]

I've always wondered about this. Are they made of different materials? I've seen hundreds of unrestored Charger interiors and in almost 100% of the the speedos and smaller gauges look like junk, all brown and barely legible, but the clock looks nearly perfect. I haven't seen enough of the tachs to know if this is true for them.

[68 RT]

The clocks are aluminum faced other gages are steel faced. The brown is oxidation.

[8WHEELER]

The gauges and speedo were made at a completely different manufacture than the clock.

Dan

[694spdRT]

Good question Bull.

Thanks for the replies guys....one less thing to wonder about.

[69hemi]

I always thought it was because the clock never worked...heh heh heh

[Khyron]

I always thought it was because the clock never worked...heh heh heh