Orient Dual Time – CDH00001B


If you are looking for affordable mechanical watches with added features like world time, slide rule, power reserve, open heart, sub second, etc, you should look no further than Orient.

Orient is known for incorporating these features into their watches and this time round, I had the opportunity to handle an Orient with dual time and slide rule features. The watch is called the Orient Dual Time and the model number CDH00001B.

The watch is powered by the new 48K40 movement that comes with stop second (hacking) feature. The second hand stops when the crown is pulled to the second click position.

Below is a closer shot of the dial. The sub-dial at the 12 o’clock position shows the remaining power reserve. Maximum power reserve is 40 hours.

The dual time window is located between the 9 and 10 o’clock hour markers. This feature allows you to keep track of the time in another country and can be set independently.

The sub-dial at the 6 o’clock position shows the date and surrounding the dial is the rotating ring of the slide rule.

The crown at the 3 o’clock position is used to set the local time when pulled to the second click position.

When pulled to the first click position and rotated anti-clockwise, it sets the date pointer in the date sub-dial. When rotated clockwise at this position, it rotates the dual time disc. To use the dual time feature, rotate the crown until time(hour) in the other country is aligned with the red arrow on the dial.

The crown at the 4 o’clock position is used to rotate the slide rule. It can be rotated in both directions.

Below is the side profile of the watch. It is installed with a flat sapphire crystal with anti-reflection coating.

And here are the caseback shots. The crystal on the caseback is a sapphire crystal as well.

Besides the CDH00001B, there is another dial variant as shown below.


The watch measures 45mm across excluding crown and thickness is roughlt 13mm. Both variants comes with leather strap and push button deployant buckle. Lug width is 22mm.


Orient CDH00001B featured in this post is provided by:

Authorized Orient Distributor in Singapore:

483 Sims Avenue, Singapore 387555
Tel: 6273 3355 Fax: 6278 8929

14 thoughts on “Orient Dual Time – CDH00001B

  1. Pingback: Affordable Men’s Automatic Watches by ORIENT Japan » Blog Archive » CDH00001B: a dual time, black automatic watch
  2. I just want to know whether this watch have any perpentual date function. As I know this watch do not have this function.


  3. Pingback: Orient Dual Time – DH01001B « Yeoman's Watch Review
  4. If I am not wrong, this watch is also called the Orient Explorer. I have this watch. It’s a big watch. The dial is a bit busy and difficult to catch the time in a glance but once you get used to it, it’s ok. The slide rule bezel with so tiny numbers is practically useless but hey, it’s something different.


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