![]() 33.ATM: Measures water resistance Stands for "atmospheres" or the amount of pressure a watch can withstand before leaking One atmosphere is equal to 10 meters of water pressure.īezel: Retaining ring topping the case and securing the crystal Sometimes incorporates unidirectional or ratcheting movements, engraved or printed chapter markers, or complications such as a tachymeter.Ĭhronograph: Functioning similarly to a stopwatch, a chronograph is a unique and valued complication due to its ability to measure increments of elapsed time while the watch still maintains traditional timekeeping abilities.Original signed ETA 1256 automatic with 17 jewels in excellent condition, running well and keeping time.ĭelivered on a modern leather strap with steel buckle. Silver dauphine hour and minute hands with center sweep seconds. Signed “CROTON, NIVADA GRENCHEN, AQUAMATIC, SWISS”. The factory original satin silver dial has developed a light creme patina and is near mint, with applies silver markers and radium lume dots. The solid steel case measures 33.5mm and is in excellent unpolished condition, distinguishing itself with long, sweeping lugs, a screw down back and recessed crown. The pictures is a part of the description, study therefore the pictures carefully!Ī charming gents Croton Nivada Grenchen Aquamatic wristwatch produced in the 1950’s. The movement is in a very good, newly serviced, condition! In some lights it seems a bit pink gold-coloured and in other lights it doesnt. The crown is the original "top head"-crown. The crystal is in very good condition without any cracks och dings. The medallion features the Longines fish logo which is heightened with translucent green enamel. Turning the watch over reveals the weighty stainless steel screw-down back with its central gold medallion. The upper case has a gold capped surface – this is formed from a sheet of gold fused to the metal beneath and is a much more hard wearing and robust finish than standard gold plating. The dial shows some signs of ageing as you can see, but what to expect on a original dial from 1950's? This vintage Longines "Conquest" got a beautiful dial with zon structure and beautiful lustre, strong two-toning and applied multi-faceted indexes. The model itself has just been revived in 2020 by the Nivada company, along with a modern version of its classic Chronomaster range. There are a huge range of Aquamatic watches but currently most interest is in the early models from the 1950s and 1960s. There is an Aquamedico version that carries a difference reference (AM4) but is essentially exactly the same model. Compared to a Rolex Explorer, it stands up well as at fraction of the price of one the 1950s collectors grail watches. ![]() Whilst small by modern standards, the 34-35mm case sizes were completely appropriate for the explorers of the 1950s, where size was less relevant than accuracy and reliability. ![]() The early models had a caseback held by 4 screws but the company moved to screwback cases in line with its other more popular model, The Antarctic. the 360EL on some dials indicates a full 360 degree rotation of the movement rotor, unlike lesser bumper movements of the time, and a major marketing coup. The Aquamatic was quite something in the 1950s.
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