OMEGA Pterodactyl 434.23.42.22.02.001, elegant design style is loved by watch enthusiasts 42 mm diameter case is made of stainless steel after a fine grinding and polishing treatment gloss and texture to make people love it dial design simple but not lost in the exquisite classic silver-colored dial with subtle indexes and hands so that people at a glance to feel its extraordinary texture dial provides calendar function in the form of a calendar ring located in the inner circle of the dial fourth "crescent-shaped hand" to indicate the date whether you wear daily or to attend formal occasions can easily cope with the internal automatic mechanical movement on a full-winding basis to indicate the date. The calendar function is provided in the form of a calendar ring on the inner ring of the dial, with a fourth "crescent-shaped hand" indicating the date for both everyday wear and formal occasions. The automatic mechanical movement inside the watch provides a 60-hour power reserve when fully wound. The Co-Axial escapement reduces wear and tear and reduces energy consumption, thus prolonging the movement's service life and ensuring precision in all environments.