Ōtsuka Lōtec
No. 5 | A stainless steel semi-skeletonised wristwatch with satellite hours display | Circa 2026
Lot Closed
May 13, 01:30 PM GMT
Estimate
7,000 - 14,000 CHF
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Read more.Lot Details
Description
Dial: semi-skeletonised
Calibre: cal. MIYOTA 90S5 automatic, 25 jewels
Case: stainless steel, screw-down case back
Closure: Ōtsuka Lōtec leather strap and stainless steel buckle
Size: 40.5 mm diameter
Signed: case, dial and movement
Box: yes
Papers: yes
Accessories: Ōtsuka Lōtec Limited Warranty Certificate, instruction manual and presentation box
The No. 5 is built around a satellite hours display, in which rotating hour discs traverse a fixed minute scale, transforming the reading of time into a sequential mechanical action rather than a static indication.
In the present example, this system is partially exposed through the dial, allowing the rotation and transfer of the hour satellites to be observed directly. The construction is deliberately literal, with the mechanism left visible rather than concealed behind a conventional dial, reinforcing the watch’s emphasis on process over presentation.
Driven by a Miyota 90S5 base calibre adapted to accommodate the satellite hours display, the watch is defined less by decorative finishing than by clarity of construction. The stainless steel case remains restrained and functional, placing focus on the display architecture itself.