1960s Croton Chronomaster Aviator Sea Diver (Ref. 105) Valjoux Cal. 92

$ 2,450

The Chronomaster range of watches from Nivada Grenchen and Croton were produced when adventures and exploration were at the forefront of what was happening in the world and within the pop culture of the 1960s. Within the expansive world of vintage timepieces, there is no uncertainty that vintage tool watches hold a particular position in the minds of numerous collectors. The 1960s and 1970s were what we now know as the golden era of sports watch design where the form of a watch needed to meet its intended function to support the adventures that the watch was created for. Nivada Grenchen or Croton in the States was founded in Grenchen, Switzerland in the 1920s by Jacob Schneider, Nivada Grenchen was actually one of the first watch brands to manufacture automatic watches. Nevada also encompassed other modern wristwatch innovations, creating waterproof and “rustless” watches that would stand up to the rigors of the outdoor adventures they were creating a watch for. 


Stock # CTNCASD105-3
Brand Croton
Style Aviator Sea Diver
Model 105 / 9855
Serial 65XXX
Size Men's
Material Stainless steel
Dial Matte Black
Millimeters 38
Bracelet 2pc Handmade Leather Strap


The wonderful case has been gently polished in the past and retains excellent angles and dimensions with honest signs of use present. The original bi-directional bezel remains deep black in coloration while showing light signs of use throughout. The case retains its original pump pushers and unsigned crown. The case back features all of its factory markings in crisp condition with gentle tool marks and wear shown. The watch will come supplied on a 2pc handmade leather strap.


The original matte black dial features a lovely vintage aesthetic with tasteful aging seen throughout the dial. Despite the aging, no actual damage is present on the dial. The early tritium lume plots feature a saturated yellow color and exhibit no notable degradation when inspected under U.V. light. The original tritium "broad arrow" hands are slightly darker than the dial patina but match overall and exhibit no degradation under U.V. light inspection.


None. The watch was recently serviced and is keeping time perfectly, backed by a 1-year warranty on accurate timekeeping.

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