WatchBus 手錶討論區 :: 觀看文章 - [請教]潛水錶之疑問!!!
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al
終極會員
終極會員
發表 發表於: 星期日 2008-11-16 12:06
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gst 寫到:
quote from wikipedia

Bezel markings

Most contemporary dive watches with conspicuous 15 or 20 minute markings on their bezels, are the result of copying a Rolex bezel design of the 1950s. Back then divers typically planned a dive to a certain maximum depth based on now obsolete US Navy dive tables, and dove according to the planned dive profile. If the dive profile allowed a bottom time of 35 minutes the diver, upon entering the water, would set the marker on the bezel, 35 minutes ahead of the minute hand. The diver calculated this with the 60 - bottom time formulae (60 - 35 = 25, for 35 minutes bottom time the diver would align the 25 minute bezel-mark with the minute hand). Once the minute hand reached the main-marker on the bezel the diver would begin his ascent to the surface. The 15 or 20 minute scale helped with timing the ascent and whatever safety stop the diver deemed necessary. For contemporary diving methods the 15 or 20 minute "count-down" bezel is quite antiquated.[9]
多謝解答!
al
終極會員
終極會員
發表 發表於: 星期日 2008-11-16 12:09
引言回覆

sovereign 寫到:
al 寫到:
在下玩潛水錶.游泳早已行之多年了,
可是有一疑問一直無法弄懂,
就是為何潛水錶的旋轉錶圈從1~15分鐘都有刻度,
其餘皆沒有???
版上有前輩可指點迷津嗎?
先行謝過了!


al大


也會有疑問

眼睛轉啊轉 眼睛轉啊轉 眼睛轉啊轉 眼睛轉啊轉 眼睛轉啊轉
別笑在下了,
我的問題可多了!
stevehhh
白金會員
白金會員
發表 發表於: 星期日 2008-11-16 12:34
引言回覆

al 寫到:
sovereign 寫到:
al 寫到:
在下玩潛水錶.游泳早已行之多年了,
可是有一疑問一直無法弄懂,
就是為何潛水錶的旋轉錶圈從1~15分鐘都有刻度,
其餘皆沒有???
版上有前輩可指點迷津嗎?
先行謝過了!


al大


也會有疑問

眼睛轉啊轉 眼睛轉啊轉 眼睛轉啊轉 眼睛轉啊轉 眼睛轉啊轉
別笑在下了,
我的問題可多了!

這也是小弟的疑問
但是我怕被那個女人罵 哈 哈 哈

_________________
***八卦山人****
http://3821.org.tw/
newlife
初級會員
初級會員
發表 發表於: 星期日 2008-11-16 12:37
引言回覆

gst 寫到:
quote from wikipedia

Bezel markings

Most contemporary dive watches with conspicuous 15 or 20 minute markings on their bezels, are the result of copying a Rolex bezel design of the 1950s. Back then divers typically planned a dive to a certain maximum depth based on now obsolete US Navy dive tables, and dove according to the planned dive profile. If the dive profile allowed a bottom time of 35 minutes the diver, upon entering the water, would set the marker on the bezel, 35 minutes ahead of the minute hand. The diver calculated this with the 60 - bottom time formulae (60 - 35 = 25, for 35 minutes bottom time the diver would align the 25 minute bezel-mark with the minute hand). Once the minute hand reached the main-marker on the bezel the diver would begin his ascent to the surface. The 15 or 20 minute scale helped with timing the ascent and whatever safety stop the diver deemed necessary. For contemporary diving methods the 15 or 20 minute "count-down" bezel is quite antiquated.[9]


感謝分享, 真的增長知識耶!! 眨眼
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