3 Answers

https://www.google.co.uk/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=thai%20romanization

Enter Japan's mack daddy dive watch, the Grand Seiko SBGH255. This 600m-rated professional model is designed with saturation diving in mind. After 18 hours in the habitat, my body became saturated with nitrogen (the body will on-gas to link reach equilibrium at depth), therefore allowing me to experience my link first link saturation dive with the SBGH255 on my wrist.

The principle is the same if you're link in the Southern Hemisphere but link slightly different. If you're south of the Equator the Sun is in the northern part of the sky. You hold your watch link horizontally and align the 1200 marker with the Sun. North not South will be at the halfway point between the hour hand and the 1200 mark.