New Releases · 2026-08-05

Seiko turns Honda’s folding Motocompo into a 36.4mm field watch

The 8,000-piece Seiko 5 Sports HDB010 carries the Motocompo’s yellow-and-black graphics, compact proportions and playful industrial details.

By Chronolume digest · Original English summary · Based on Seiko; Fratello for announcement date

Seiko 5 Sports Honda Motocompo HDB010 front view — The HDB010 uses the Motocompo’s yellow-and-black graphics in a compact field-watch case. Seiko ↗

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This is a sourced news summary, not a hands-on review. Read the original reporting at Seiko; Fratello for announcement date ↗

What to know

Seiko’s HDB010 translates Honda’s 1981 Motocompo folding motorcycle into a compact 5 Sports Field model. The bright yellow dial is crossed by a black band carrying the Honda logo, while the six o’clock lettering borrows the bike’s dot-matrix typography. Even the crown is engraved “TURN,” echoing the Motocompo’s fuel cock, and the nylon strap marks its attachment points with transport-themed wording.

Seiko HDB010 alongside the yellow Honda Motocompo — Seiko places the watch beside the folding motorcycle that supplied its colour and detailing. Seiko ↗

The black hard-coated steel case measures 36.4mm across, 12.5mm thick and 44.4mm lug to lug. Inside, the automatic Seiko 4R36 offers hand winding, hacking seconds, day-date display and roughly 41 hours of reserve. Curved Hardlex covers the dial, water resistance is 100 metres, and production is limited to 8,000 pieces. Seiko lists the European price at €450.

At a glance

Specifications reported by Seiko; Fratello for announcement date
reference	HDB010 / HDB010K1
price	€450
edition	8,000 pieces
case	Black hard-coated stainless steel, 36.4 × 12.5mm; 44.4mm lug to lug
movement	Seiko 4R36 automatic with manual winding
powerReserve	Approximately 41 hours
functions	Hours, minutes, seconds, day and date; hacking seconds
crystal	Curved Hardlex
waterResistance	100m
strap	Nylon, 18mm lug width