Chronomaster Only


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The most comprehensive book on a Nivada Grenchen or Croton timepiece, Chronomaster Only, explores the details of the Chronomaster Aviator Sea Diver, a chronograph launched in 1961 and produced for nearly a decade. The model was produced under a number of different names with a variety of dials and hands, the perfect situation for an “Only” reference book (you may be familiar with this series from the well-known “Moonwatch Only guide).

A partnership between Nivada, based in Grenchen, Switzerland, and Croton Watch Co., an American company (the US distribution company formed for Nivada Grenchen), led to a diverse number of dials for this model, some with the mouthful “CROTON NIVADA GRENCHEN Chronomaster Aviator Sea Diver.” It’s a watch with such a design strong enough to support, along with the Nivada Antarctic, the relaunch of Nivada Grenchen in 2020.

The book contains 288 pages, over 650 illustrations, and measures 25 x 30.7 cm.

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