No Reserve
8114
Otsuka Lotec
Model No. 7.5
A “brand-new” and intriguing stainless steel wristwatch with jumping hours, rotating minutes, running seconds discs, warranty and presentation box
- Estimate
- HK$24,000 - 40,000•€2,600 - 4,400$3,100 - 5,100
HK$69,850
Lot Details
- Manufacturer
- Otsuka Lotec
- Year
- Circa 2025, Japan
- Case No
- P75-23403
- Model Name
- Model No. 7.5
- Material
- Stainless steel
- Calibre
- Automatic, Miyota cal. 82S5 with in-house jumping hour module, 21 jewels
- Bracelet/Strap
- Leather
- Clasp/Buckle
- Stainless steel Otsuka Lotec pin buckle
- Dimensions
- 40mm diameter
- Signed
- Case, dial, movement and pin buckle signed
- Accessories
- Accompanied by Ostuka Lotec warranty stamped Precision Watch Tokyo dated 30 May 2025, instruction manual, product literature, cloth, fitted presentation box and outer packaging.
Specialist
Full-Cataloguing
Catalogue Essay
• The Otsuka Lotec No. 7.5 is a striking example of Japanese independent watchmaking, crafted by Jiro Katayama, a former car designer turned self-taught artisan. Inspired by vintage 8mm turret cameras, the watch features a steampunk-industrial aesthetic with a unique three-lens dial layout. These apertures display the jumping hour, rotating minutes, and running seconds, each framed by custom fisheye lenses that give the watch its signature look.
• The updated 2023 version of the No. 7.5 features a stainless steel case, sapphire crystals front and back, and a Miyota 82S5 automatic movement with a custom-developed jumping hour module. The module was created in collaboration with Precision Watch Tokyo, a company owned by Hajime Asaoka, further elevating the watch’s technical pedigree. Despite its unconventional display, the watch remains legible when viewed head-on and offers a satisfying mechanical click with each hour jump.
• Production is extremely limited to only 200 pieces per year and the watch is sold exclusively within Japan, requiring a local address and Japanese-issued credit card. Coming with full set of accessories and in “brand new” condition, the present example is a rare and coveted piece among collectors. Its artisanal charm, hands-on craftsmanship, and camera-inspired design make it a standout in the world of independent horology.
• The updated 2023 version of the No. 7.5 features a stainless steel case, sapphire crystals front and back, and a Miyota 82S5 automatic movement with a custom-developed jumping hour module. The module was created in collaboration with Precision Watch Tokyo, a company owned by Hajime Asaoka, further elevating the watch’s technical pedigree. Despite its unconventional display, the watch remains legible when viewed head-on and offers a satisfying mechanical click with each hour jump.
• Production is extremely limited to only 200 pieces per year and the watch is sold exclusively within Japan, requiring a local address and Japanese-issued credit card. Coming with full set of accessories and in “brand new” condition, the present example is a rare and coveted piece among collectors. Its artisanal charm, hands-on craftsmanship, and camera-inspired design make it a standout in the world of independent horology.