Seiko introduces the Prospex HBB006 “Blue Tears,” a new limited edition created exclusively for the Thong Sia Group markets of Singapore, Hong Kong, Macau, Malaysia and Brunei. Inspired by the bioluminescent glow of waves glowing in the night, known as “Blue Tears”. The watch features a deep blue sunray dial and matching blue bezel, housed in a stainless-steel diver’s case and powered by Seiko’s automatic Calibre 4R35. Limited to 1,200 pieces, the HBB006 will be available from October 2026.

Here is our commentary with pricing notes, specifications and official release.

Seiko Prospex HBB006 “Blue Tears”: A Thong Sia Group Exclusive Limited Edition

Commentary, Price, Specifications and Official Press Release

The Seiko Prospex HBB006 “Blue Tears” Ref. HBB006 retails at SGD 953.80, inclusive of GST. Limited Edition of 1,200 pieces. Available only in Seiko Boutiques in Singapore, Hong Kong, Macau, Malaysia and Brunei.

Seiko Prospex HBB006 “Blue Tears”: What is New

Seiko has taken their tried and tested Prospex diver’s watch formula and given it a regional character in this new Thong Sia Group Exclusive Limited Edition. The inspiration is the bioluminescent phenomena known as “Blue Tears”. A a natural nighttime phenomenon where microscopic marine organisms emit a bright blue or blue-green light when disturbed by waves or movement. The appeal of the watch is how Seiko translates this idea into the dial, bezel and hands, rather than just a poetic name to a just another blue watch.

The deep blue sunray dial is the focal point. Under light, the sunray finish gives the dial the impression of some movement. The blue seconds hand adds a small but effective point of contrast. The dark blue bezel completes this blue monochromatic theme. At night, the Lumibrite on the hands and indices glows bright, adding character to this watch, and reminiscent of the “blue tears” phenomena. The base watch – the Prospex remains unchanged from its other versions. The knurled crown and knurled bezel sides are particularly attractive and remains.

Seiko’s interpretation of “Blue Tears” shows creative restraint. Rather than covering the dial with elaborate decoration, the design relies on colour and finishing. The deep blue sunray dial provides the visual foundation, with the blue seconds hand and dark blue bezel reinforcing the theme. The effect is particularly appropriate for a diver’s watch – calm in daylight, while in the night, the lume becomes the dominant visual element in darkness.

Each watch comes with both the 3 link stainless steel bracelet and a navy-blue silicone strap, giving owners flexibility in changing the looks when worn. The complimentary Prospex picnic mat is an amusing launch extra and fits the lifestyle aspect of the “Blue Tears” story, but for us it is secondary. The watch itself is the story: this is a beautiful, a blue-themed Prospex with a specific regional distribution and a limited production run.

Normally the Seiko Prospex at nearly 42mm and 12mm thick wears prominently on the wrist. As it should. After all, this is a diver’s watch, made to withstand 200m of water resistance. But should sit comfortably on most wrist sizes without overhang, or unbalanced weight distribution.

Pricing Notes

The price of the Prospex HBB06 “Blue Tears” is SGD 953. This an attractive price point, just below the SGD 1k mark. The closest regular version is perhaps the HBB001, which is essentially the same watch in a different colourway, and a larger limited edition of 9999 pieces with global distribution. The HBB01 retails at SGD 850, but is currently listed as sold out. Also the HBB003 and HBB004, in either yellow or orange dial colours at SGD 899 with a Asia Pacific distribution and limited to 2500 pieces each. However, the HBB01, HBB03 and HBB04 lack the second silicon strap. If required, the silicon strap is purchased separately. These typically go for about SGD 150. The HBB06 “Blue Tears” comes with both steel bracelet and additional navy-blue strap.

Seiko Prospex HBB006 “Blue Tears” Specifications

Reference	HBB006
Movement	Caliber 4R35 * Automatic winding with manual winding * 21,600 bph * Power Reserve 41 hours
Case	* Stainless steel case with bracelet and Navy Blue silicon strap * Hardlex crystal * Screw case back, screw-down crown * Lumibrite on hands and indices * Diameter 41.7mm * Thickness 12.3mm * Water resistance 200m Diver * Magnetic resistance: 4,800 A/m

Official Press Release

Seiko Prospex introduces a new diver’s timepiece inspired by the breathtaking natural phenomenon known as “Blue Tears”, the bioluminescent marine glow that transforms night waves into glowing blue waters. Capturing this magical intersection of nature and time, the new watch blends professional-grade diving performance with a captivating aesthetic design.

The deep blue dial features a delicate sunray pattern that captures the shimmering light of bioluminescent plankton swaying beneath dark ocean waves, glistening with the poignant, luminous beauty of teardrops that illuminate the sea depths. Complemented by a vibrant blue seconds hand and a dark blue bezel, the timepiece evokes the poetic tranquility of a nighttime seascape illuminated by nature’s own light. High-intensity Lumibrite coating on the hands and indexes ensures optimal legibility in the dark, echoing the dynamic interplay of light and shadow that defines the “Blue Tears.”

Engineered for reliability, the watch is housed in a solid stainless steel case paired with a durable stainless steel bracelet. An additional silicone strap in navy blue is included to complement the dial, allowing for versatile styling options.

To celebrate the launch of the new Thong Sia Group Exclusive Limited Edition Prospex Blue Tears, a complimentary Prospex picnic mat will be gifted with purchase of the new timepiece.

The new Thong Sia Group Exclusive Limited Edition timepieces will be available from October 2026 at Seiko Boutiques and selected retail stores in the regions where Thong Sia Group operates (Singapore, Hong Kong, Macau, Malaysia and Brunei), with the model limited to 1,200 pieces.