Prospex Seiko Watchmaking 110th Anniversary Limited Edition. To mark 110 years of watchmaking excellence, Seiko is highlighting its continuous dedication to evolving technology, as well as diversity, equality and the sustainable manufacturing necessary to meet environmental challenges. Based on an iconic design, this landmark automatic diver's watch, available only in a controlled-production run of 5,000, with the serial number engraved on each caseback, also extends the Prospex tradition of celebrating its rich legacy of innovation in high-intensity timekeeping by re-creating and re-interpreting signature achievements. Expressing the power of nature, the three-dimensional pressed pattern silver dial suggests the majesty of Ice Age glaciers transformed through millions of years of cooling. Framed by a gray uni-directional rotating elapsed timing bezel, the dial also features LumiBrite hands and markers, as well as a date calendar. Created for scuba diving to depths of 200 meters, this exceptional timepiece includes a 24-jewel automatic movement with a frequency of 21,600 vibrations per hour, a power reserve of approximately 70 hours, and manual winding capability. Crafted of stainless steel with durable super-hard coating, screwdown crown and caseback, curved sapphire crystal, and tri-fold push-button release clasp with a specially developed compact buckle, secure lock and extender, this environmentally conscious design emphasizes Seiko's commitment to conservation by offering an additional fabric strap made of 100% recycled plastic bottles. As part of Seiko’s "Save the Ocean" campaign, a portion of the proceeds from sales of this extraordinary Limited Edition will be contributed to marine conservation. Packaged in a Limited Edition collector's box. 200m Water Resistant.