The Citizen Promaster Whale Shark is a limited-edition men's dive watch (model BN0225-04L) from the Promaster Sea collection. Inspired by the majestic whale shark, this timepiece is a bold re-issue of Citizen's iconic 1982 dive watch, with only 5,000 pieces produced worldwide — each unnumbered.

The 47mm Super Titanium case features a grey DLC (Duratect) coating with sand blasting, delivering exceptional scratch resistance while remaining significantly lighter than steel. The deep ocean-blue dial incorporates spot patterns reminiscent of whale shark skin, with luminous hands and markers for underwater visibility, a date display, and a one-way rotating elapsed-time bezel. A whale shark engraving on the case back pays tribute to ocean conservation. The mineral crystal glass is impact and shatter resistant, and the 24mm black polyurethane strap fastens with a buckle clasp and includes a wetsuit extension for diving use.

Powered by Citizen's Eco-Drive technology with Caliber E168, the watch is recharged by any light source and never requires a battery. The movement is ISO-compliant, anti-magnetic, and anti-shock, with water resistance rated to 200 meters — suitable for scuba diving.

A portion of the sales revenue from this model is donated to Conservation International, an international NGO dedicated to marine conservation and protecting the critical benefits that nature provides to humanity.