The black dial black bezel GMT Ocean-1 Swiss Automatic watch is 42-mm in size and weighs in at just over 6 oz. It uses the Swiss ETA 2893-2 automatic movement. It has a powerful sports design; dual time zones; screwed-in crown and case back with a metal case ring. The date is independently adjustable and the second hand is sweeping seconds. This GMT has an independently setting 24-hour GMT hand to set and track the second time zone. Hands and markers use Super-LumiNova C1.

GMT Models Available:

Black 42-mm

Blue / Red 42-mm

Black / Red 42-mm

GMT2 White 42-mm

GMT2 Black 42-mm

(click image to enlarge)

(click image to enlarge)

• 42mm GMT
• lug-to-lug = 50.5mm
• thickness = 12.7mm
• incl. crown = 46mm
• weight incl. band = 6.7oz
• bracelet length = 7.5 inches

Gmt Ocean-1 Operating Instructions:
To get started, unscrew the crown, which is located on the right side of the watch at the 3pm position. To unscrew the crown, turn the crown counter-clockwise until it lightly jumps out into the 1st Position. The 1st Position is where you "wind" or "charge" your watch, which is very important since the watch won't run accurately on wrist motion alone.

1st Position - Wind The Watch:
In the 1st Position turn the crown clockwise 25 to 30 turns. This is called "winding the watch". You probably want to do this once a week, just to make sure your watch is wound and runs smoothly.

2nd Position - Change The Date & Change The GMT Hand:
Warning: Do not set the date or 24-hour hand while the main hour hand is between 8pm and 2am as this can seriously damage the watch, and such damage is not covered under the warranty.
Pull the crown out gently to the 2nd Position. The 2nd Position is where you both change the date and change the GMT hand. To change the date, turn the crown counter-clockwise slowly which advances the date one day at a time. The date doesn't turn backwards so be sure you don't pass the current date, otherwise you have to cycle through the remaining days to reach the correct date again. To change the GMT Hand, slowly turn the crown clockwise which advances the GMT Hand one time-zone at a time. The GMT Hand aligns with the 24-hour markings on the outside bezel.

3rd Position - Change The Time:
Gently pull out the crown to the 3rd Position to set the time. Once the crown is in the 3rd Position, you can change the time by moving the crown clockwise. Remember that in any given 24-hour period the hour hand will pass the 12 marking twice. When the watch is set to midnight, the passing hour hand will also change the date. Please notice that when the date changes at lunch time, the AM-PM is reversed on your watch. To solve this, simply change the time forward 12 hours, thereby changing the AM-PM relationship.

When you are done winding the watch, setting the date and setting the time, you are going to screw the crown back into its original position. This is very important, otherwise water and humidity might get into the watch. To screw the crown back in, push on the crown gently while at the same time turning the crown clockwise. It is very important that you screw the crown in completely, otherwise water or humidity might leak into the watch.

Once the watch has been wound, it will run even if you remove it from your wrist. Of course after a while, the spring that you wound by winding the crown will be unwound and the watch will stop. This will cause you to repeat the steps outlined above to once again get it running smoothly and accurately.

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Gmt Usage Example:
To set the scene for this example, assume you live on the East Coast and it is now 5-pm. However you want to track the time on the West Coast as well, and local time there is 2-pm.

2-pm in 24-hour markings (since it's Military time) is 1400 hours. So set the red GMT hand to point to the 1400 marking on the bezel. This will now accurately track the time on the West Coast while the normal hour hand tracks East Coast time.

Here's another example, you want to track the time in London which is +5 hours from the East Coast. So at 5-pm EST, it is 10-pm in London. Per Military time, 10-pm is 2200 hours, so align the red GMT hour hand up with 2200 on the bezel and you're tracking London time.

To find a list of time zones around the world, search Google for "World Times". Enjoy your watch.