According to the NOAA, the US military dress code for officers allows "only one wristwatch and one bracelet."
http://www.noaa.gov/The National Oceanic and Atmospheric Administration (NOAA) is a scientific agency within the United States Department of Commerce focused on the conditions of the oceans and the atmosphere. NOAA warns of dangerous weather, charts seas and skies, guides the use and protection of ocean and coastal resources, and conducts research to improve understanding and stewardship of the environment. In addition to its civilian employees, NOAA research and operations are supported by 300 uniformed service members who make up the NOAA Corps. The Under Secretary of Commerce for Oceans and Atmosphere at the Department of Commerce, retired Navy Vice Admiral Conrad C. Lautenbacher, serves as the administrator for NOAA.
The National Oceanic and Atmospheric Administration Commissioned Corps (NOAA Corps) is one of the seven Uniformed Services of the United States, having approximately 300 commissioned officers. It is the uniformed service of the National Oceanic and Atmospheric Administration (NOAA), which is a scientific agency under the United States Department of Commerce.
The NOAA Commissioned Corps, established in 1917 as the Coast and Geodetic Survey Corps, and then as the Environmental Science Services Administration (ESSA) Corps from 1965-1970, traces its roots back to the former U.S. Coast and Geodetic Survey, which dates back to 1807 and President Thomas Jefferson. The U.S. Coast and Geodetic Survey officers were commissioned so that under the laws of war, they could not be executed as spies if they were serving as surveyors on a battlefield.
The NOAA Corps today provides a cadre of professionals trained in engineering, earth sciences, oceanography, meteorology, fisheries science, and other related disciplines. Officers operate ships, fly aircraft, manage research projects, conduct diving operations, and serve in staff positions throughout NOAA.