Automatic mechanical movement, Calibre CH 28-250 QA 24H based on CH 28-520 IRM QA 24H. Contains 37 jewels and has 402 parts. Beats at 28800 vph (4.8 Hz) with approximately 55 hours power reserve. Annual calendar automatically adjusts for months up to 31 days. Date display at 3 o'clock position, day of the week indicator. Analog dial features blue tones and rose gold-tone applied index hour markers, minute markers around outer rim, luminescent material on hands and markers for low-light visibility. Subdial at 6 or possibly 9 position displaying small second function (flyback chronograph). Rose gold-tone 18kt rose gold case with round shape measuring 42 mm diameter and 14.03 mm thickness. Blue alligator leather strap secured by a tang clasp.