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| [#3822] 手錶天地 而每年有超过80万只腕表经过超越天文台标准认证的劳力士，在目前瑞士量产腕表的钟表品牌中，精准度表现仍然无人能出其右。＜ 聞說 R 年產超過80萬隻錶，仍然供不應求，數年前有調查說就算 R 而家立刻唔賣錶，年產量不變，一路唔炒人仍可繼續生存80年，她這製錶業是唯一一個能擠身世界100項最成功的工業裏，也是長久以來最受修錶師傅推崇的品牌。 |
0925 正式會員218.xxx.xxx.124 |
2016-08-18 21:49 | |
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| [#3823] 手錶天地 終於揾到土炮黑殼，44mm無logo用番經典大洋蔥錶的，靚過orient。:)  最後修改時間: 2016-08-18 22:14:57 |
newnew 正式會員 202.xxx.xxx.11 |
2016-08-18 22:07 |
| [#3824] 手錶天地 #3823 left one looks good. how much ? |
ptcm 正式會員 218.xxx.xxx.187 |
2016-08-18 22:08 |
| [#3825] 手錶天地 580人仔 :) http://m.intl.taobao.com/detail/detail.html?spm=a1z3o.7695460.0.0.s033rK&id=10867105385 |
newnew 正式會員 219.xxx.xxx.193 |
2016-08-18 22:14 |
| [#3826] 手錶天地 妖，戴表只係要求個殼硬為重？禾就一籃子：設計- 外型，包括殻既型狀，殻既大小，面盤，針，顏色，外圈（如有），計唔計時，動能（上練，自動，石英，人動能，太陽能），殻的物料，打磨及手工，口碑，注目度，用途，易買度，保用期及售後服務，價格（呢個巧重要^_^） ===================================================== 原創性、合身份、工作行業；物料會考慮，但不鏽鋼硬度從不考慮。 |
BigLeung 正式會員 183.xxx.xxx.133 |
2016-08-18 22:18 |
| [#3827] 手錶天地 http://www.damasko-watches.com/cn/cases The mechanical strength of the case with regards to wear and signs of usage and thus preserving the value of a wristwatch is a central consideration in watchmaking from our perspective. Who has not experienced accidentally scraping the elevator edge or the wall in the stairwell with his expensive, highly polished piece for the first time and having to lament up to 1/10 mm deep scratches or scrapes before you know it. Unfortunately the austenitic stainless steels used in the manufacture of watch cases, such as 1.4435 (316L) or 1.4301, do not harden due to their austenitic structure. Although there is a method wherein the surface can be hardened to 1200 HV using a diffusing carbon, this hard layer or “protective coating” is only a few hundredths of a millimeter thick and tends to already break at low mechanical stress. In our experiments cases with such a surface treatment could be scratched with as little as a normal watchmaker’s tweezers. For this reason, this case and this procedure did not qualify for our watch cases. Rather, this method is industrially applied to or used for components prone to surface pressure, such as balls for ball valves or pistons for piston pumps. Thus it is easy to understand why we already applied for a patent for the first temperable martensitic stainless steels for use in watch case construction back in 1994. These steels are nickel-free, can be hardened up to 64 HRC or 800 HV and are therefore ideal for watch cases. After 5 years of research and development work, about 20 different martensitic stainless steels were filed for patent. In our company it was decided to to use nitrided, martensitic stainless steel in the future because of its superior properties. In the manufacture of this stainless steel the molten steel is enriched with nitrogen under pressure. The addition of nitrogen reduces the required percentage of the alloy constituent carbon. While carbon is required for high hardness in the alloy, it also lowers the corrosion resistance. About 1% carbon is required as an alloy component in order to harden the martensitic stainless steel to about 60 HRC. It has now been shown that the required amount of carbon is also reduced to 0.35 % by the addition of 0.35% nitrogen, and a hardness of 60 HRC is achieved by this favorable combination of alloy constituents. By lowering the carbon content, however, the corrosion resistance is increased many times over. This stainless steel, which is also called “ice tempered, nickel-free stainless steel” due to the special heat treatment, is patent protected by our company for use in the watch case production, and has been delivered until the end of 2002 as a complete case to a German watch manufacturer, inclusive of crown and pushers produced and hardened by us. From now on this case made of hardened stainless steel is exclusively available at Damasko watchmaking. After the heat treatment this stainless steel reaches a hardness of up to 62 HRC or 760 HV. This corresponds to approximately four times the hardness of austenitic stainless steel normally used in watch case production. Our cases are fully hardened, which renders scratching or breaking with steel tweezers or similar implements impossible. Owing to its enormous resilience, this very expensive stainless steel is mainly used in the aviation and aerospace industry. #3819 師兄推崇備至的Damasko，搞來搞去搞咗5年，個殼都係 ＜780 vickers。  |
0925 正式會員 218.xxx.xxx.124 |
2016-08-18 22:21 |
| [#3828] 手錶天地 low quality watches usually have very poor vickers standards, some are not even stated. It's common for HKers to buy logo more than practicality. just because you consider 200 factors doesn't mean it's better. Rolex have never achieved ＞600 vickers. Many German have exceeded Rolex in terms of steel quality, which is a fact. 最後修改時間: 2016-08-18 22:35:58 |
ptcm 正式會員 218.xxx.xxx.187 |
2016-08-18 22:26 |
| [#3829] 手錶天地 #3827＜#3819 師兄推崇備至的Damasko，搞來搞去搞咗5年，個殼都係 ＜780 vickers。＜ nice copy and paste work, but learn to read technical descriptions correctly mayabe more important. http://www.damaskowatchtechnology.com/technology-stainless.php "leaving the surface with a key hardness of 1600 HV (Hardness Vickers)" open your eyes and look. "1600." Do you need chinese translation? lol 最後修改時間: 2016-08-18 22:41:54 |
ptcm 正式會員 218.xxx.xxx.187 |
2016-08-18 22:31 |
| [#3830] 手錶天地 哈，呢條帖快要改成(硬）手表（殻）天地^_^ |
bliss33 會員 61.xxx.xxx.54 |
2016-08-18 22:45 |
| [#3831] 手錶天地 Damasko watch range a highly corrosion resistant austenitic stainless steel alloy which can be fully hardened was chosen, leaving the surface with a key hardness of 1600 HV (Hardness Vickers) 係花考說話，唔該睇返佢官網講自己個殼點造和實際幾多 hardness http://www.damaskowatchtechnology.com/technology-watchcase.php Due to the reasons described above Damasko searched extensively for better alternatives. In 1994 after five years of research they took out patents for 20 closely related martensitic sorts of stainless steel which highly exceeded our expectations. They are absolutely nickel-free, offer a good corrosion resistance, and can be tempered up to 64 HRC/800Vickers which is four times the hardness of every other steel currently used in the watch industry. What makes this material so special is the fact that the molten steel is enriched with 0.35% nitrogen under high pressure. Nitrogen and carbon are responsible for the hardness of the alloy. Under normal circumstances it takes about 1% of carbon to temper a martensitic steel up to 60 Rockwell but the low nitrogen content of our steel only requires 0.35% of carbon to achieve this superior hardness and in addition to that leads to an excellent corrosion resistance which is many times higher compared to other temperable martensitic steels. Due to the special process of hardening Damasko calls this steel “ice-hardened, nickel-free stainless steel”. This material is patented for their applications and Damasko makes exclusive use of this pioneering material. 最後修改時間: 2016-08-18 23:09:33 |
0925 正式會員 218.xxx.xxx.124 |
2016-08-18 23:08 |
| [#3832] 手錶天地 It's clearly stated "1600." get a dictioinary if you can't read English. It's very simple that everyone can see it. copy and paste more doesn't change the "factual" information. 最後修改時間: 2016-08-18 23:19:02 |
ptcm 正式會員 218.xxx.xxx.187 |
2016-08-18 23:13 |
| [#3833] 手錶天地 The back is more beautiful than the front on this one.  |
ptcm 正式會員 218.xxx.xxx.187 |
2016-08-18 23:20 |
| [#3834] 手錶天地 It's clearly stated "1600." get a dictioinary if you can't read English. It's very simple that everyone can see it. copy and paste more doesn't change the "factual" information. ＜ 咁麻煩師兄email給Damasko負責人話佢官網講自己個殼點造和實際幾多 hardness http://www.damaskowatchtechnology.com/technology-watchcase.php 係誤導喇。 |
0925 正式會員 218.xxx.xxx.124 |
2016-08-18 23:23 |
| [#3835] 手錶天地 It's black and white. "1600." if you can't read simple English, you should go back to school. Why should people waste time on your inability to read "simple" English ? Get a English＞Chinese dictionary lah Ching. Fact is fact. 最後修改時間: 2016-08-18 23:29:37 |
ptcm 正式會員 218.xxx.xxx.187 |
2016-08-18 23:28 |
| [#3836] 手錶天地 有無關於窮人恩物精工錶嘅錶殼硬度資料？我又冇勞冇sinn冇damasko......剩係窮到燶戴精工。 |
newnew 正式會員 202.xxx.xxx.86 |
2016-08-18 23:31 |
| [#3837] 手錶天地 精工 is very good ah, not bad at all. "Snowflake", SBGA031 200m diver, SBGC005 Spring Drive GMT chronograph, 300-350 in the Vicker's scale"  最後修改時間: 2016-08-18 23:37:39 |
ptcm 正式會員 218.xxx.xxx.187 |
2016-08-18 23:33 |
| [#3838] 手錶天地 咁究竟要幾硬先係好野？ |
newnew 正式會員 202.xxx.xxx.90 |
2016-08-18 23:40 |
| [#3839] 手錶天地 http://www.damaskowatchtechnology.com/Damasko-DK101-Manual-Winding-Watch ptcm 師兄，唔該睇返 #3819 你 posted 隻手錶錶殼資料，Damasko 標榜的 ice-hardened stainless steel 係咪 1600 vickers，一話有一隻有 1600 vickers 我睇漏？ Functions: Hour, minute Small sweep-second at 9 Large date at 3 Case: Stainless steel, ice-hardened, polished, burnished, bead-blasted Ice-hardened to 60 HRC or 710 HV, fully hardened Sapphire glass embossed, bilateral antireflection coating, scratchproof Glass gasket UV-resistant Glass bottom screwed with full thread, Viton O-ring gasket Sealing elements of crown provided with permanent lubrication Crown hardened Crown barrel hardened, screwed into casing according to "System Damasko" Waterproof according to DIN 8310, pressure-proof up to 10 bar/100 metres Vacuum-proof fitted glass  |
0925 正式會員 218.xxx.xxx.124 |
2016-08-18 23:40 |
| [#3840] 手錶天地 For Grand Seiko, the hardness is somewhat around 740hv. Be realistic, 1600hv steel is almost not possible to shape or manufacture. |
sun-sat 正式會員 218.xxx.xxx.148 |
2016-08-18 23:45 |
| [#3841] 手錶天地 咁究竟要幾硬先係好野？＜ 個人覺得如果金屬殼，祇要係 316L, 904L 或鈦(銅就點處理都變色)，冇 hardened 都OK |
0925 正式會員 218.xxx.xxx.124 |
2016-08-18 23:45 |
