The mid-20th century witnessed the invention of the regulator, serving to balance the pressure between the diver’s lungs and the compressed air reserves. This invention boosted the spread of scuba diving and the emergence of instruments designed to accompany sports enthusiasts.
In 1961, Vulcain presented one of the first diver’s watches with an alarm movement that was genuinely audible under water: the Nautical. Its strike represents a precious function which – thanks to its triple case-back serving as a resonance chamber – effectively warns divers that it is time to return to the surface. In 2013, Vulcain pays tribute to this legendary model by creating a DLC limited edition.
This highly durable, charcoal grey layer with a low friction coefficient consists of an atomic lattice composed of the two forms of carbon: diamond (sp³) and graphite (sp²). Diamondblack™DLC (Diamond-Like Carbon) is applied using a coating process which faithfully mirrors the original surface finishes. Diamondblack™DLC consists solely of molecules of carbon and hydrogen arranged in a structure similar to that of diamond, producing a layer with excellent chemical stability and high corrosion resistance.
Its proven biocompatibility enables prolonged contact with the skin without causing irritation. It has a very high level of hardness, around 5,000 Vickers, compared to stainless steel, approximately 200 Vickers. This high-tech coating is used in the aerospace industry and in any application in which wear resistance and a low friction coefficient are essential.
Model: NAUTICAL DLC, 100-piece Limited Edition
Ref. 100152.024L DLC
Case & dial
Case: DLC-coated satin-brushed, polished black knurled bezel
Case-back: triple case-back serving as a resonance chamber and enabling underwater use of the alarm function
Diameter: 42.00 mm
Thickness: 17.30 mm
Water resistance: 30 ATM
Vulcain Cricket Manufacture Calibre V-10
Mechanical 12-lignes manually-wound alarm movement, 25 jewels, 157 parts, twin barrels, equipped with Exactomatic system, 48° angle of lift
Decoration: nickel coating, blued screws
Frequency: 18,000 vibrations/hour
Power reserve: 42 hours
Alarm duration: approx. 20 seconds
Hours, minutes, central seconds, alarm, Fixed dial with decompression-table indication and
60-minute graduated rotating inner bezel ring activated by a screw locked crown at 4 o’clock
Strap: rubberised waterproofed leather black
Dimensions: 22/18 mm
Buckle: DLC-coated steel pin buckle