Nivada Grenchen Chronomaster Aviator Sea Diver Chronograph squarewatches Although less well known to

Although less well known to collectors today than its aforementioned competitors

Watches such as this one are fun and wonderful timepieces

with demand for Heuers of this era reaching stratospheric proportions

A relative rarity on the market

The case back is stamped with RCN

Nivada Grenchen Chronomaster Aviator Sea Diver Chronograph squarewatches Although less well known toCroton, Nivada, or Nivada Grenchen: by whatever name they go by, this companys watches were meant to handle anything. And no model of Nivada's typifies this more than the Chronomaster Aviator Sea Diver; not only is it a chronograph (a chronomaster, even), but it can be used at sea and in the air. Nivada (called Croton in the U. S. due to a copyright dispute with Movado) introduced the Chronomaster Aviator Sea Diver in 1963 and produced it in many