Jiro Kataya Debuts the Ōtsuka Lōtec No.8
A rectangular timepiece that captures the fleeting nature of time through a dramatic retrograde minute fader.
Summary
- Ōtsuka Lōtec’s No. 8 is a rectangular steel watch featuring a kinetic two-layered dial
- Powered by a modified Miyota 90S5 movement with 62 components, it comes in a stainless steel case
Following Ōtsuka Lōtec‘s unveiling of the No. 9, independent watchmaker Jiro Katayama continues his exploration of angular, rectangular forms with the introduction of a new offering: the No. 8.
Designed and manufactured in Japan, the No. 8 features a distinctive two‑layered dial construction. At its upper level, a constantly rotating seconds disc completes a full revolution every 90 seconds. The centerpiece of the watch’s kinetic performance occurs once every hour: the jumping hour channel advances in a single motion, while the minute fader – linked to a visible flywheel – executes a retrograde sweep, snapping back from 60 minutes to zero. This dramatic motion, as the fader lever passes between the dial layers, can be admired through the sapphire crystal, which is treated with anti‑reflection and anti‑fingerprint coatings.
Beating as the heart of the watch is a Miyota 90S5 automatic movement, extensively modified with Ōtsuka Lōtec’s in‑house module. Comprising 62 components, the module incorporates advanced engineering such as two 2.5 mm ball bearings and a single ultra‑small 1.5 mm ball bearing from MinebeaMitsumi — currently the smallest in the world. The 33‑jewel caliber beats at 28,800 vibrations per hour and delivers a power reserve of approximately 32 hours.
Encased in 316L stainless steel with straight graining, the rectangular case measures 47.8 mm by 31 mm with a thickness of 10.8 mm and is paired with a solid caseback. This is complete with 3 ATM water resistance and a sporty 24 mm rubber strap. Priced at ¥990,000 JPY (approx. $6,277 USD), the No. 8 is backed by a one‑year warranty and available through Ōtsuka Lōtec’a official website.
