1967 Croton Chronomaster Aviator Sea Diver “CASD”

Some speak of it as the quintessence of the 60’s Swiss chronograph. Others call it a “Swiss army knife”.
Indeed, it is the only watch to be, at the same time, a chronograph, a diver, a GMT, a pilot’s watch and a regatta watch !!

This chronograph is going hotter and hotter, especially since the publication of the excellent book “Chronomaster Only” by Grégoire Rossier and Anthony Marquié.

Featuring a beautiful and particularly well drawn black dial with dashes of red, broad arrow hands, black bezel turning brown, round pushers, this is a very desirable and typical 60s chronograph.


ModelChronomaster Seadiver
Case materialStainless Steel
MovementHand Winding
Diameter38 mm


The watch is overall in good condition. The very rare brown bezel is looking great. The dial is in excellent condition. The case looks great, with a slightly bent lug, but overall very few usage marks and no scratch. Hands show some patina. Movement has been checked and oiled. It comes on a dark green alligator strap.