Seven years on from its split from parent brand Seiko—and many watches and press releases later—the contemporary Grand Seiko brand is well-understood. The Japanese brand makes hand-assembled luxury watches, often priced around the $10,ooo mark, with limited editions costing more, and quartz models less. With dial designs inspired by nature, from wind-sculpted snow to silver birch bark, their modern ethos is clearly the self-proclaimed “Nature of Time.”

When Grand Seiko launched in 1960 however, the emphasis was solely on precision with no mention of snow or trees. The high quality was there, and Grand Seiko watches were certainly considered luxury items at the time, but the company was driven by a determination to outperform Swiss Chronometers. The Grand Seiko watches of this early period were purely mechanical, with movements that matched and ultimately far exceeded Swiss chronometer standards. They were generally co-branded Seiko, something Grand Seiko would never do now.

These vintage Grand Seiko watches were produced from 1960 to 1975 for the Japanese domestic market. With the relaunch of the Grand Seiko brand worldwide, there is now renewed interest in collecting these vintage models which were produced to the same and sometimes higher standards than Grand Seiko mechanical models today.

Here are seven of the best vintage Grand Seiko references, from affordable to mythically expensive.