Nomos Glashutte Tangomat Watch (how to set the date)

YouTube via KeepTheTime
"http://www.keepthetime.com/index.php?... * Nomos Glashutte Tangomat Date in new condition, unworn * Automatic self-winding mechanical movement o Made in Germany o Caliber Nomos Zeta * Hand polished stainless steel case (316 L) o 38.5mm diameter o 8.2mm thick * Sapphire crystal * Sapphire exhibition style case back * Water resistant up to 30m * Handmade Shell Cordovan strap (horse leather) * Lug width 20mm * Unworn condition in velvet lined poplar wood box and information booklet * Retail price $3,440"
Nomos watch prices on Ebay

Image of a black Nomos Tangomat via this auction.