Omega Speedmaster Mark II ref was a departure from the traditional Speedy design that opted for a tonneau-shaped case with hidden lugs. The result was a very distinctive watch that is reminiscent of the 1970s and we have a handsome modern example for sale here in UNWORN Omega condition. Ref. features a striking grey dial decorated with chronograph registers and fluorescent orange design elements. The tachymeter scale is presented on the scratch-resistant sapphire crystal covering the dial and is illuminated from below by long-lasting Super-LumiNova. At the heart of this intriguing Omega beats the caliber 3330 self-winding mechanical movement with a 52-hour power reserve.