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BC-S2 Black Watch
Bremont Collection
Hand-made wristwatch with black watch face
Price available on request. Product: CL2382
Size: U
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This series of automatic chronometers are housed in a 43mm case and powered by the modified and Bremont workshop finished BE-36AE movement, based on the 2836. The BC-S2 is inspired by some of the original wartime aircraft instruments. It has a day-date at the 6 o'clock position, and a 43mm Trip-Tick three-piece case hardened to 2000 Vickers using Bremont's BVE-2000 technology.
Vapor-resistant, the domed glass face and crystal case-back has an anti-reflective, scratch-resistant coating applied to both sides, making the watch waterproof to a depth of 100 m (10 ATM). The black watch face is complemented by a matching leather strap with cream stitch detailing. The watch is securely fastened with a solid stainless steel deployment buckle and engraved security clasp.
Each Bremont wristwatch is carefully handmade, adjusted and tested at their Swiss Biel-Bienne workshop. All the watches are made in limited quantities and individually registered by Bremont.
| Movement | Modified calibre 13 1/4": Valjoux 7754 chronometer; 25 jewels; Glucydur balance; Anachron balance spring; Nivaflex 1 mainspring; 28,800 bph; 42 hour power reserve; moulded and decorated skeletised rotor. |
|---|---|
| Functions | Hour/Minute/Second, date at 3H, chronograph small counters with seconds 30 minutes and 12 hours. |
| Case | Hardened stainless steel Bremont Triply construction with scratch resistant PVD treated case barrel: Case diameter 43mm; lug width 22mm; case thickness 16mm. |
| Case Back | Stainless steel with integrated flat mineral crystal. 5 stainless steel screws with polished heads. |
| Dial | Metal dial with various ground colors. Nickel hands with SuperLumiNova C1 luminous coating. |
| Water Resistance | Water resistant to 10 ATM, 100 meters. |
| Crystal | Domed anti-reflective scratch resistant sapphire crystal. |
| Automatic winding | A watch whose mainspring is wound by harnessing the movement of the wearers arm/wrist. These movements cause the rotor (an oscillating weight) to rotate and wind the mainspring. |
|---|---|
| Balance | The balance works in combination with the balance spring to regulate the rate of a mechanical watch. The balance usually comes in the form of a three spoke wheel whose oscillations are translated into the movement of the pallets via a small ruby pin (the impulse pin). In classical watch movements, the balance oscillates at a rate of 5 beats per second (bph), the equivalent to 18,000bph. To improve the precision, modern wristwatches have an increased rate of 19,800; 21,600; 28,800 or sometimes 36,000bph. In quality wristwatches, the balance is made of an alloy called glycidur, a mixture of copper and beryllium which has a hardness of 380 Vickers, allowing it to be carefully regulated and riveted in position. Temperature also has very little effect on this alloy. |
| Balance Spring | A spiral of ribbon-shaped metal, coiled 12 to 15 times, that ensures that the balance oscillates at a regular rate. The balance spring is securely fastened to the balance's axis of rotation and delivers the braking and acceleration energies required to keep the balance rotating. Nivarox is the special alloy used for quality springs. Nivarox is an alloy that doesn't rust, and is immune to magnetism and temperature. |
| Bezel | This is the ring around the case which holds the crystal of a watch to the case of the watch. |
| Buckle | A hinged fold-over traditional style clasp that flicks open and fastens with ease. |
| B-EBE2000 | All Bremont watches are treated for hardness with B-EBE2000 technology. This special stage in the case production, in which the metal is bombarded with electrons, gives the stainless steel a dramatically increased hardness and scratch resistance. On the Vickers scale of hardness, B-EBE2000 produces a watch case with a value of 2000, which is approximately nine times that of the normal stainless steel used for watch cases. |
| Calendar | Chronograph watches show the date information on sub-dials on the watch face. |
| Caliber | A term used to describe the form and/or size of a movement and often specifying the type of movement. |
| Case | A case of a watch is the primary housing for the internal watch movement. |
| Case Back | The bottom of the watch case that can be opened for access to the watch movement for repair or battery change. Some watches have a sapphire glass backing which allows you to see the working mechanism of the watch. |
| Chronograph | A watch with a variety of special features displayed on sub-dials, including a stopwatch mechanism. |
| Chronometer | Movements whose accuracy has been tested and passed by an official 15-day series of tests by the C.O.S.C., over a range of temperatures and five physical positions. The average daily deviation rate of the movement must be between -4 and +6 seconds and only then does the movement earn the right to be designated as a chronometer and receive a certificate issued by the C.O.S.C. |
| C.O.S.C. | Controle Officiel des Chronometers is an independent non-profit testing organization based in Switzerland. |
| Deployment Buckle | Is a clasp that folds elegantly into the strap. |
| Domed Crystal | A convex pane of clear glass-like material (usually artificial sapphire crystal) covering a watch's dial. |
| Escapement | Energy from the mainspring is restrained by the escapement to help control the gear train. At the same time the escapement provides further energy to the balance spring where unavoidable losses due to friction are compensated. Modern wristwatches usually contain the pallet escapement which consists of the escape wheel and its pinion. |
| Horological | The art of making a Timepiece. |
| Incabloc | A shock absorption system used in pocket and wristwatches. |
| Index (Adjustment) | A device which can be used to set the rate of a watch by changing the effective length of the balance spring in the oscillation system. |
| Jewels | To minimize friction in the most important bearings, jewels are fixed to the anchor pallets and ellipse. A movement with a large number of jewels does not necessarily mean that the movement is of particularly high quality. |
| Mechanical watches | Watches that are powered by a mainspring whose oscillating system runs purely on a mechanical basis, e.g. balance or pendulum. |
| Mohs hardness scale | This scale was devised to divide the devised to divide the whole spectrum of harness using a scale of 1 to 10. "1" stands for a very soft material (talcum) and "10" for the hardest material (diamond). |
| Power reserve | The maximum amount of time over which a mechanical movement can continue to run after its mainspring has been fully wound. |
| PVD (Physical Vapor Deposition) | Special processes used for the application of thin hard-material coatings. The main advantage of PVD coatings is its low precipitation temperature which allows it to be used on many different material types. The surface hardness of the PVD coatings vary from 2000 to 3000 HV. |
| Rotor | The oscillating mass which moves and turns freely about its axis in an automatic watch. The rotor winds up the mainspring as it swings. A clutch prevents the rotor from over-winding the mainspring. |
| Sapphire Crystal | Sapphire crystal is the favored material for a watch crystal due to its exceptional hardness (9 on the Mohs scale). Using sapphire crystal is far more expensive to produce than mineral or acrylic crystals. Domed crystals are also far more expensive and difficult to produce than flat crystals. |
| Shock absorption | A system used to protect the very fragile pivots of the balance staff against breakage. The jewels for the pivots of the balance staff are elastically fitted to the main plate. In response to a severe shock, they give first. A watch with shock absorption properties should be able to meet the demands of DIN 8308-A. The testing includes the watch being hit by a hammer at 4.4m m/s (equivalent of the watch being dropped from a one meter height onto a solid wooden floor). The watch must then not show a rate deviation of more than +/- 60 seconds a day. |
| Stainless Steel | An alloy of steel, nickel and chrome. Although difficult to work with, it is resistant to rust, extremely tough and antimagnetic. |
| SuperLumiNova | A luminous paint used on the dials of watches that does not display any radioactive properties. The luminous effect is based on the principle of phosphorescence. SuperLumiNova therefore needs to be charged by an external light source. As many as 15 to 20 coats of SuperLumiNova paint are applied to quality dials in very small measures, to ensure that luminous dials are effective whilst not encroaching on the aesthetic qualities of a quality dial. |
| Trip-Tick Construction | All Bremont watch cases use Trip-Tick construction consisting of three parts: *The hardened steel bezel element containing the sapphire crystal. *The central body section consisting of a PVD-treated middle barrel or titanium. *The sapphire crystal back (For both durability and aesthetics, the separate middle section allows our case designers to use differing metals, e.g. titanium, to alter the watch's weight, while PVD allows Bremont to employ contrasting colors to distinguish between the various models). |
| UTC | UTC stands for 'Universal Time Coordinated' and allows the wearer to display local time together with the official world time standard - UTC, or Greenwich Mean Time (GMT), or Zulu Time (Z). UTC (replacing GMT in 1972) is therefore used as the standard clock of choice for international reference time in communications, military, aviation, maritime and other activities that cross time zones. |
| Vickers Hardness | A common scale used to determine the hardness of a material (using effect of a diamond being pushed against the object under test). The impression created by the diamond on the surface is measured and the hardness calculated. Stainless steel, for example, ranges from 200 to 240 HV, titanium 210 HV, sapphire crystal 2000 HV and diamond 4500 to 10,000 HV. |
| Water resistance | A pressure resistance of at least 10 Bar is guaranteed for every Bremont watch. This corresponds to the pressure of water at a depth of 100 meters. Gaskets wear through external factors, and therefore water resistance should be checked annually to preserve a watch's permeability to water. |
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