Property of the Original Owner
7
Otsuka Lotec
Model No. 5 Kai
A "brand-new" and attractive stainless steel wristwatch with satellite hours display, warranty and presentation box
Estimate
HK$30,000–50,000•︎
€3,400–5,700
$3,800–6,400
Manufacturer
Otsuka Lotec
Year
Circa 2026
Case No
P5K-13948
Model Name
Model No. 5 Kai
Material
Stainless steel
Calibre
Automatic, Miyota cal. 90S5, 25 jewels
Bracelet/Strap
Leather
Clasp/Buckle
Stainless steel Otsuka Lotec pin buckle
Dimensions
40.5mm diameter
Signed
Case, dial, movement and buckle signed
Accessories
Accompanied by Otsuka Lotec warranty stamped Precision Watch Tokyo dated 9th April 2026, instruction manual, thank you card, cloth, fitted presentation box and outer packaging.
Full-Cataloguing
Good to know:
- Total revamp of the original Model No. 5
- Japanese made movement and parts with ball bearings from MinebeaMitsumi Inc. for the satellite hours display
- “Brand-new” condition with full set of accessories
Otsuka Lotec founder Jiro Katayama perhaps is one of the most celebrated contemporary Japanese independent watchmakers. Known for incorporating analogue apparatus into watchmaking, the design of his watches is unconventional and innovative.
Released at the beginning of 2025, the Model No. 5 Kai merges industrial instruments into Japanese watchmaking. It is a total revamp of the original Model No. 5, replacing the regulator-style mechanism with a satellite hour module with three rotating discs, being a new addition to Otsuka Lotec’s line up featuring exotic displays.
Otsuka Lotec’s watches are true representations of “Made in Japan” craftsmanship, fitting timepieces with Japanese made movements and components crafted in Katayama’s atelier. The present Model No. 5 Kai is fitted with a cal. 90S5 based movement manufactured by Miyota, in which it is renowned for outstanding reliability. For this particular model, ball bearings of MinebeaMitsumi Inc., a well-known Japanese manufacturer in mechanical parts, are used in the satellite hour module.
Freshly delivered in 2026, this timepiece is in “brand-new” condition and unworn, completed with its original accessories. For collectors that appreciate Japanese mechanics and craftsmanship, one should not miss this chance to acquire this desirable piece.
- Total revamp of the original Model No. 5
- Japanese made movement and parts with ball bearings from MinebeaMitsumi Inc. for the satellite hours display
- “Brand-new” condition with full set of accessories
Otsuka Lotec founder Jiro Katayama perhaps is one of the most celebrated contemporary Japanese independent watchmakers. Known for incorporating analogue apparatus into watchmaking, the design of his watches is unconventional and innovative.
Released at the beginning of 2025, the Model No. 5 Kai merges industrial instruments into Japanese watchmaking. It is a total revamp of the original Model No. 5, replacing the regulator-style mechanism with a satellite hour module with three rotating discs, being a new addition to Otsuka Lotec’s line up featuring exotic displays.
Otsuka Lotec’s watches are true representations of “Made in Japan” craftsmanship, fitting timepieces with Japanese made movements and components crafted in Katayama’s atelier. The present Model No. 5 Kai is fitted with a cal. 90S5 based movement manufactured by Miyota, in which it is renowned for outstanding reliability. For this particular model, ball bearings of MinebeaMitsumi Inc., a well-known Japanese manufacturer in mechanical parts, are used in the satellite hour module.
Freshly delivered in 2026, this timepiece is in “brand-new” condition and unworn, completed with its original accessories. For collectors that appreciate Japanese mechanics and craftsmanship, one should not miss this chance to acquire this desirable piece.