Robust Looks Meet Everyday Usability

The newly released "PROSPEX DIVER SCUBA Produced by LOWERCASE" is a solar chronograph with a striking sporty yet urban aesthetic.

The professional series, originating from a 1975 model with an external protector that became synonymous with SEIKO divers' watches due to its high reliability and unique appearance, was supervised by Yoshikage Kajiwara, Creative Director at LOWERCASE, known for his consultation work with numerous renowned brands.


While retaining its robust design, the size has been made more compact, enhancing its suitability for casual, everyday wear. It comes packaged in a special box with the LOWERCASE logo, and the case back is engraved with a serial number.

There are three models in the lineup. Each is a limited edition of 3,000 units.

Yoshikage Kajiwara
Representative of the creative consulting firm "LOWERCASE." Former Creative Director at BEAMS. As a pioneer of cross-industry collaborations, he has undertaken groundbreaking projects with companies and brands such as Nike, Motorola, Disney, and LEGO, redefining the concept of select shops. He currently handles branding and consultation for the high-end market, with his expertise spanning design, fashion, and digital domains. In addition to consulting for select shops, department stores, and fashion brands, he also plans and distributes his own products in collaboration with the Yoshida & Co. "PORTER" brand. He has also been actively involved in writing, publishing his first book, the restaurant guide "TRANSIT TOKYO Gohan," and the personal essential items guide "The Essential Things 100" in 2010.

PROSPEX DIVER SCUBA Produced by LOWERCASE
Diameter | Approx. 47mm
Thickness | Approx. 14.2mm
Movement | Solar Movement Cal. V175
Power Reserve | 6 months (when fully charged)
Other | 200m water resistance for air diving, unidirectional rotating bezel, stopwatch function, 24-hour hand, date display
Release Date | November 11, 2016 (Friday)
Price | (SBDL035) ¥63,000, (SBDL038) ¥55,000, (SBDL037) ¥50,000 *Excluding tax