Omega

Omega Speedmaster is a line of chronograph wristwatches produced by Omega. While chronographs have been around since the late 1800s, Omega first introduced this line of chronographs in 1957. Since then, many different chronograph movements have been marketed under the Speedmaster name. Astronaut Walter Schirra was the first person to wear one in space in 1962 during his Mercury-Atlas 8 mission. The manual winding Speedmaster Professional or "Moonwatch" is the best-known and longest-produced; it was worn during the first American spacewalk as part of NASA's Gemini 4 mission, and was the first watch worn by an astronaut walking on the Moon during the Apollo 11 mission. The Speedmaster Professional remains one of several watches qualified by NASA for spaceflight, and is still the only one so qualified for EVA. The Speedmaster line also includes other models, including analog-digital and automatic mechanical watches.

Speedmaster Olympic Reference 323.10.40.40.04.001 is a stainless steel automatic wristwatch with chronograph and date, circa 2013, with Omega’s caliber 1164 self-winding mechanical movement and approximate 44-hour power reserve. Date display is located at the 3 o’clock position. Stainless steel bezel with tachymeter function. Stainless steel round case in diameter 40 mm, white dial with Arabic numerals and 3 subdials. Brushed and polished stainless steel bracelet with folding clasp.

Fits a wrist size of 7.5 inches or smaller.