At the exterior the watch is polished with "godron decor" between brushed vertical bands. The genuine Raymond Weil ribbed screwed down crown has a RW monogram. The push-pieces of the chronograph also fluted and screwed down as well.Nabucco's face is covered by a sapphire crystal with double-sided anti-glare treatment. It's thickness is 2.5 mm. There are 11 polished and nickelled applique indexes, all having luminescent highlights.The hours and minutes hands of the watch are tipped with Boston diamonds; they also have luminescent highlights.The chronograph has Red Baton hands with counterpoise. The screwed down case-back has a RW monogram in relief. Polished bracelet has carbon fiber links and a RW folding clasp, having double push-piece security. Raymond Weil Nabucco is a watch able to resist 20 ATM, which is about 200 meters.The new watch from Raymong Weil is a carbon fiber chronograph. It's movement is a mechanical chronograph Valjoux 7753 tri-compax, having 28,800 vibrations per hour. The timepiece is a self-winding watch.Power reserve of the watch is 46 hours. It includes 27 rubies and its chronograph functions include:start, stop and re-start, using a push-piece located at 2 o’clockback to zero, using a push-piece at 4 o’clockcentral chronograph hand30-minute subdial, found at 3 o'clock12-hour subdial, found at 6 o'clock60-second subdial, found at 9 o'clockAt 4:30 there is a round date window. To set the date one must use a push-button date-set, found at 10 o'clock. The perfectly round sporty case of the watch is made of polished steel. The diameter of the case is 46 mm, it's thickness is 15.6 mm and it is 55.5 mm long.Nabucco's circular bezel upper is made of brushed steel and it also includes a tachometer.
Su***ces that are rough or porous hold back the electrolytic fluid thus turning into active zones where allergenic cations are produced. Afterwards the resulting metal corrosion produces even higher concentrations of the metal ions. When examining the case-back of a chrome-plated watch attacked by sweat, one may notice how much corrosion has taken place. In such a way the wearer of a watch can understand why the skin became sensitive.Besides stainless steel watches and bracelets, it is also important to take into consideration the bi-color watches, meaning those that are made of gold and steel. These can also cause problems to a sensitive skin. Just like stainless steel, gold has different electric potentials, which is why sweat transports ions faster. Thus, an increase in corrosion represents a great risk of allergy. There is a close connection between the rate of corrosion and the rate of allergies. Those who are allergic to nickel obviously should avoid wearing watches containing any nickel at all. An alternative for such watches might be some models from Swatch. The company produces watches made of synthetic materials. Another alternative can be luxury watches made of pink or yellow gold. It is worth mentioning that white gold quite often includes nickel the amount of which can cause allergic reaction of skin. Sensitive skin can also be affected by gold-plated watches. However, an allergic reaction may occur when such watches are worn for quite long periods of time. This is because the thin layer of gold wears off, thus exposing the skin to the metal that contains nickel.
If taking into consideration watches than it is necessary to mention the possible contact of skin with the case or bracelet of the watch. Another reason for an allergic response of one's skin refers to the fact that nickel is liberated quite easy from its alloy and onto the skin. It liberates in the form of positively or negatively charged particles. Positive ions can be transported by a fluid, which serves as an electrolyte. Very often the electrolyte is sweat, however the particles can be transported by water from the sea or from a swimming pool. The stainless steel, which is used to make watch cases, is the one that liberates nickel ions in different amounts. The amount of liberated ions depends on the nature of the alloy as well as the proportions of the individual components. Note that stainless steel made for medical purposes practically does not liberate nickel ions. People that are are allergic to nickel should avoid wearing costume jewelry made of nickel silver. The allergic reaction often shows up in the form of dermatitis. A very important factor linked with liberation of nickel ions concerns the condition of metal su***ce that comes in contact with skin.Invar has a very low coefficient of expansion) and Elinvar (variation of Invar). The discoveries of the new alloys were of great use mainly in precision pendulum rods, watch balance springs, as well as thermostats, length standards. What causes allergies to nickel?If a sensitive skin of a person is in direct contact with a certain object containing nickel, there is a possibility that the allergic reaction occurs.
The composition was also the one to be used in the production of cases for inexpensive watches. Before that only silver was used. Over time the watch industry passed on to make watches of stainless steel. Today pure nickel is used in electroplate watch parts, including bridges and plates that are made of brass. This is done to prevent oxidation of watch parts. Using a thin layer of nickel is all that is needed to protect the parts and maintain their shiny metallic appearance. Throughout the history nickel was also used to create balance springs and pendulum rods. It is worth mentioning that Charles-Edouard Guillaume (1861-1938) in 1920 was awarded a Nobel Prize in Physics. The Swiss International Bureau of Weights and Measures worker was the one to discover anomalies in nickel-steel alloys. His observation led to the discovery of Invar (ferronickel that comprises about 36% nickel. In the watch*** industry nickel is used together with stainless steel. The latter is a material watch*** companies use to create water-resistant cases. However both nickel and watch*** have a lot of other tangency points as well. Nickel Throughout HistoryAn alloy made of nickel, copper and zinc, named "nickel silver," for more than 150 years has been used to crate plates and bridges in some of the most qualitative watches. The nickel silver, which includes about 15 - 20 percent Ni, was the one to replace the brass.
In 1966, Heuer (before it was TAG Heuer) patented the first miniaturized electronictimekeeping instrument accurate to 1/1000th of a second. Now, 38 years later, TAGHeuer releases the first wristwatch capable of the same level of precision: theMicrotimer.Features of the MicrotimerF1 racing timer. The TAG Heuer Microtimer is a very unique looking, very sophisticated watch designedfor timing sporting events with unprecedented accuracy. The fact that TAG Heuerwas the first to achieve this level of precision is a testament to its reputationin the world of racing.The Microtimer sells for roughly $1,300.Additional resourcesTheMicrotimer product page.TheMicrotimer Diamonds.Microtimerproduct card (PDF).Microtimeruser manual (PDF).Update (4/15/2005): From Watch Report reader Victor Shiff, "The 1/1000 timer from TAG Heuer is not the first such watch. Some 12+ years ago (from fallible memory), Casio had several watches with 1/1000 second (1 ms) chronograph functions, cheaper than $1300 too!. There is an unstated problem with these 1 ms chronographs and that is the contact bounce of the button contacts that the watch circuitry has to ignore. This bounce can be from 5 ms to as much as 15 ms and is not necessarily repeatable. What this means to me is the 1 ms is marketing hype."Thanks, Victor. I noticed shortly after publishing this article that the Seiko Sportura World Time (SNJ005) quietly launched with a millisecond timer. Maybe what TAG meant is that they had the most expensive such watch, or perhaps the coolest looking. I'll give them that. Measurements precise to 1/1000th of a second.Time each lap individually, and quickly recover the fastestlap in Best Lap mode. (Maximum lap time of59 minutes, 59 seconds, and 999 thousandths of a second.)Lap indicator. While in F1 racing mode, the watch displays the number ofthe current lap. (Maximum of 80 laps.)Total race time. In addition to the time of the current lap, watch the totaltime of the race.Alarm (sounds for 60 seconds).Chronograph (stopwatch) with split times. (Measures to 1/1000th of asecond, maximum time of 99 hours, 59 minutes, 59 seconds, and 999 thousandthsof a second.)Date.Dual time zone display.Quartz movement.Water-resistant to 100 meters (10 ATM, 10 BAR, or 330 feet).Scratch-proof, anti-reflective sapphire crystal.Water-resistant, vulcanized, anti-UV treated rubber strap.Backlight (illuminates for six seconds).Low battery indicator (battery life between2 and 3 years, depending on use)."Screen saver." Turns the watch display off when not in use.