To the world at large, the Tubbataha Reefs Natural Park (TRNP) is a vast, mysterious stretch of deep blue water as far as the eye can see, with small islets on either end, and the atolls or circular coral reefs rippling just beneath the surface. The park covers 970.3 square kilometers of what may be the most important, protected, and productive marine ecosystem in the Philippine archipelago—a UNESCO World Heritage Site, an ASEAN Heritage Park, a Blue Park, and one of renowned oceanographer Dr. Sylvia Earle’s Hope Spots on the planet.
Sitting 150km from Puerto Princesa, Palawan, in the middle of the Sulu Sea, it is biological treasure, scuba diving mecca, and formidable economic and scientific resource, all rolled into one.

Lush coral reef by Boogs Rosales
In May 2025, the renowned watch brand Philip Stein and the TRNP did a first-of-its-kind collaboration by organizing WatchTubbataha, an expedition of photographers, filmmakers, and conservationists who documented the beauty of the park over five days of diving. Philip Stein, known for harnessing natural frequencies for human health in its timepieces, is contributing in a big way to raising awareness and appreciation for Tubbataha. 
Christine and the whale shark by Yvette Lee

Diver at the Malayan Wreck by Jürgen and Stella Freund

The curious giant trevally by Ram Yoro
These resulting images—a few among many stunning ones—are proof of Philip Stein’s championing of Tubbataha’s long-term survival, as well as their upliftment of scuba divers who respect the underwater environments they visit.
The watchmaker introduces its very first foray into the world of scuba diving on Sept. 2, 2025—the Philip Stein Tubbataha Titanium Professional Diver’s Watch— at a launch that features an exhibition of Tubbataha photographs and video. It will turn over a major donation in support of the TRNP.
At the exclusive event, to be held at The Gallery in Greenbelt 5, guests can examine up close the imposing timepiece, which comes in a limited edition of 200 pieces. It features a 44-millimeter grade 5 titanium case with a unidirectional rotating ceramic bezel, as well as scratch-resistant sapphire glass, a blue mother-of-pearl dial, and a screw-down crown. The watch, which is water-resistant up to 200 meters, uses an automatic self-winding movement, with a power reserve of 30 hours. It displays the date, as well as a unique shark image on the case back. An ocean blue or coral orange strap silicone strap, or a metal strap option, are fastened with a double push-button deployant buckle in titanium. Philip Stein’s Natural Frequency Technology (NFT) disc is inside the timepiece.
The Philip Stein Tubbataha Titanium Professional Diver’s Watch will do much more than just monitor time underwater. In the words of Emerson Yao, managing director of the Lucerne Group of Companies, which brings Philip Stein to the Philippines, “By wearing the watch, supporters carry a fragment of the reef’s future on their wrists.”
The WatchTubbataha Exhibit will run for two weeks at Greenbelt 5’s The Gallery.
#PhilipSteinPH #WatchTubbataha




