1960s Zenith Cal.146HP "271" 37mm Water-Resistant Chronograph Rare 18K Yellow Gold with Brown dial

This is a very rare 18kt yellow gold brown dial, model "271" 37mm waterproof chronograph with Zenith Cal.146HP manufactured in 1960's. This is a very rare piece with 18kt yellow gold case. This is a rare piece with 18k yellow gold case, which is very rare among the Model 271 with steel case. 37mm solid 18k gold screw back waterproof case has a massive feeling, and the aged brown dial with a great vintage taste is very precious and fascinating. It is a precious gem. Equipped with a Universal Geneva-based Cal. 146HP, it is also recommended as a high-performance chronograph with waterproof function.