Nivada 57023

Nivada Grenchen Dephtomatic Very rary professional diver watch

Basic Info Listing code : OCUXA0 Brand : Nivada Reference number : 57023 Case material : Steel Bracelet material : Leather Year of production : 1968 Condition : Used (Good) Scope of delivery : No original box, no original papers Gender : Men's watch/Unisex Location : Italy Price : 1,300 Availability : Item is in stock Caliber Caliber/movement : Nivada Base caliber : Eta 2472 Power reserve : 42 h Number of jewels : 25 Frequency : 18000 A/h Case Case material : Steel Case diameter : 43 x 46 mm Water resistance : 20 ATM Bezel material : Aluminum Crystal : Plexiglass Dial : Black Dial numerals : Arabic numerals Bracelet/strap Bracelet material : Leather Bracelet color : Brown Clasp material : Steel Other Rotating Bezel, Only Original Parts In 1964, the Nivada Depthomatic was presented in Basel, which should have been the first diving watch with a water depth gauge. The depth gauge works with a push detector; in other words, through a very small opening at three o'clock, water enters the rubber tube located between the external and internal bezel, and the pressure raises the level of the tachometric scale. The depth gauge bases its operation on the depth measurement technique consisting of the so-called "Bourdon tube". The watch in question can be counted among the divers used by the Cousteau team and, more precisely, by Bernard Delemotte, an underwater cameraman. Super Compressor steel case, black Bakelite external bezel, internal bezel operated via the crown at two o'clock, black dial in my opinion stunning, cup-shaped indexes and broad arrow hands, yellowed tritium still in good condition, diameter of approximately 43 mm, ETA 2472 caliber branded Nivada, depth 20 atmospheres.