News · Seiko
Seiko puts Honda's folding Motocompo scooter on a small 36.4mm 5 Sports
The Seiko 5 Sports HDB010 puts Honda's folding Motocompo scooter on a 36.4mm case, 8,000 pieces, A$575 from September 2026.
Hen & Mills Editorial · 3 min read · 6 August 2026
Honda's Motocompo was a 49cc two-stroke that folded into a box and rode in the boot of a Honda City. It was sold as an accessory to the car rather than as a scooter you would buy on its own, and about 53,000 were built in the first half of the 1980s. It is now the subject of a Seiko 5 Sports.
The HDB010 runs to 8,000 pieces and the case measures 36.4mm across. Small, deliberately, on a watch about a machine whose entire trick was packing down to fit somewhere it had no business fitting.
Motocompo yellow, down to the pixel font
The dial is the scooter's yellow, cut across the centre by a grey band carrying the Honda logo. AUTOMATIC sits underneath it in the pixelated typeface Honda used on the Motocompo's bodywork. Day and date at three o'clock, seconds hand tipped in red, LumiBrite on the hands and indexes.
The nylon strap keeps the theme going with the Motocompo's own printed graphics, and the keepers are stamped CARRYING POINT, after the handles you grabbed to heave the thing into the car. Lug width is 18mm.
36.4mm of steel and the 4R36 under it
Stainless steel with a hard coating, 12.5mm thick, 44.4mm lug to lug, all of it under a curved Hardlex crystal. Water resistance is 10 bar, magnetic resistance 4,800 A/m.
The movement is Seiko's 4R36, the automatic with hand winding that does most of the heavy lifting in this part of the range. 24 jewels, roughly 41 hours of reserve, stop seconds and a day-date. Nobody who has owned a 5 in the last decade will be surprised by any of that, which is rather the point of it.
A red window onto the folded scooter
The back is a red-tinted see-through screw back with the Motocompo in silhouette, folded, the Honda logo above it and LIMITED EDITION below. Every piece is numbered, and Seiko's own shots show 0001/8000.
The box has had proper attention too. The outer carton is printed as a Motocompo shipping box, line drawing of the scooter and all, with モトコンポ running down the side in katakana. Lift the lid and the tray is dial yellow.
A$575, and what the size is really saying
Seiko lists it at A$575 for a September 2026 release, which puts it above the standard SRPG pieces in the 5 Sports line and below the GMTs. A 4R36 in a genuinely compact case, with a day-date, 10 bar and a decorated see-through back, is decent value at that money. If you have any soft spot at all for Honda's early 1980s oddities, it stops being a value question.
The size deserves a note on its own. People have been asking Seiko for smaller sports watches for years, and the answer has turned up as a 36.4mm limited edition rather than a catalogue model. If the 8,000 clear quickly, that is an argument for putting a small one in the core range.
