Marteau : The Heat Wave
Wednesday, 10 - Wednesday, 17 June 2026

Otsuka Lotec, Model No 7.5

Realised: CHF 11’400 including premium

For this particular lot, the Maker’s Fee promised by Marteau & Co. may, at the brand’s discretion, be allocated by Marteau to one or more non-profit organizations supporting watchmaking and craftsmanship.

Lot Details

What You Should Know: Otsuka Lotec watches look unlike anything from Switzerland — more inspired by cameras, machinery, and industrial tools than traditional luxury design. Every piece is designed by independent Japanese watchmaker Jiro Katayama, giving the brand a cult following among serious collectors. Production is extremely limited, which makes each release feel more like an art drop than a normal watch launch. Buying one outside Japan is notoriously difficult — many releases require Japanese residency, local payment methods, and winning a lottery just for the chance to purchase. This example of the No 7.5 model is sold brand new, and has never been worn.

• Lot 15 - Otsuka Lotec - Model No 7.5.pdf (80 kb)