Otsuka Lotec

Otsuka Lotec is an independent Japanese watch brand founded in 2012 by Jiro Katayama, a self-taught watchmaker and industrial designer based in Tokyo. Katayama, who transitioned from a career in automotive design, established the brand with a focus on creating unique horological instruments that deviate from traditional watch design.

The brand has gained international recognition and a cult following among collectors for its distinct industrial and retro-futuristic aesthetic. People are drawn to Otsuka Lotec timepieces because they often draw inspiration from vintage analog meters, cameras, and steampunk engineering. These watches are characterized by unconventional time displays and the use of in-house modules built upon reliable Miyota base movements. Due to limited production and high global demand, the brand primarily distributes its watches through a lottery system.

The brand’s catalog is defined by several key models: – No. 6: This model features a fan-shaped double retrograde display for both hours and minutes. It gained significant industry acclaim by winning the Challenge Prize at the 2024 Grand Prix d’Horlogerie de Geneve (GPHG).
– No. 7.5: A timepiece that utilizes three lens-like apertures for a jumping hour and minutes display, specifically designed to be reminiscent of a vintage camera.
– No. 8: This model combines a jumping hour function with a retrograde minute display, continuing the brand’s exploration of non-traditional mechanical movements.

Last update:

11 June, 2026

Otsuka Lotec watch brand logo

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