You are in front of a watch from Seiko's Prospex collection that features an automatic mechanical movement with manual winding and 24 rubies. The case has a diameter of 41mm and is made of stainless steel with hard coating. The bracelet is also made of stainless steel and has a non-adjustable deployant clasp with a push-button release. It has a power reserve of approximately 70 hours and a stop-seconds function. The black dial features a window at 3 o'clock with a calendar function and is framed by a unidirectional rotating bezel in black. Additionally, it is covered by a curved sapphire crystal with anti-reflective coating on the inner surface, through which the hands and indices with LumiBrite are visible. This watch is perfect for compressed air diving, as it is water-resistant up to 200m.