The "TO" series well reflects Tokujin Yoshioka's unique approach to design.

The watches are characterized by an appearance of solidity, making a strong statement with their substantial, sculpture-like designs. While continuing the concept on a watch appearing to have been carved from a single piece of metal, the design has been further refined. Watches with rugged, mechanical, and self-winding movements are now available.


  • Reference number: SILAS001Y
    Case and band material: Stainless steel
  • Reference number: SILAS004Y
    Case and band material: Stainless steel (Hard coating)
    Glass material: Sapphire glass
    Case size: Diameter: 45.3 mm, thickness: 13.2 mm
    Weight: Approximately 200 g
    Caliber: Mechanical movement with manual winding mechanism NE15
    Jewels: 23 jewels
    Functions: Indication (Hour/Minute)
    Accuracy: Average daily loss/gain between -15 and +25 seconds
    Case back: See-through
    Water resistance: 10 bar


Tokujin Yoshioka

Tokujin YoshiokaDesigner / Artist

Born in 1967. He worked under Shiro Kuramata and Issey Miyake, and established his own studio, TOKUJIN YOSHIOKA INC. in 2000. Active in the fields of design, architecture and contemporary art, he is highly acclaimed globally. The “Sakura Torch” for the Tokyo 2020 Olympic Games, the glass bench exhibited at Musée d'Orsay in Paris called “Water Block,” the natural crystal chair “VENUS,” the prism architecture “Rainbow Church,” and the glass teahouse “KOU-AN” are some of the signature pieces.

Many of his works are chosen as part of permanent collections in world renowned museums, including the Museum of Modern Art (MoMA), the Musée National d'Art Moderne and the Victoria and Albert Museum (V&A). He has won many international awards. He was selected by Newsweek magazine as one of the 100 Most Respected Japanese in the World.


  • glass bench
  • installation
  • glass tea room