Seiko 5 Sports HDB010 Turns Honda’s Motocompo Into a Yellow Field Watch

Seiko’s 5 Sports line has become the brand’s most flexible canvas, moving easily from everyday mechanical watches to collaborations with a distinctly Japanese sense of fun.

The HDB010 sits firmly in the latter camp, pairing Seiko with Honda for a limited edition that celebrates the 45th anniversary of the Motocompo, the foldable urban runabout first released in 1981.

It’s bright, compact and knowingly playful, which feels exactly right for a watch tied to one of Honda’s most charming small machines.

At a glance

A Honda Motocompo tribute with the right sense of scale

The Honda Motocompo was never about speed or mechanical excess.

Launched in 1981, it weighed 42kg dry and used a 49cc two-stroke engine producing 2.5 horsepower.

Its cleverness came from packaging, with foldable handlebars and footrests, plus leak-proof mechanisms for fuel, oil and battery that allowed it to be stowed in the trunk of Honda’s City car.

The idea was a compact urban mobility companion that could turn a car journey into a more flexible six-wheeled lifestyle.

Seiko’s decision to use the Mid-Field Collection format makes sense, because the 36.4mm case keeps the watch modest, practical and approachable rather than turning the collaboration into an oversized novelty piece.

Yellow dial, black hardware and Motocompo cues

The HDB010 wears a matte black hard coating over its stainless steel case, giving the bright yellow dial a sharper frame.

The crown carries the word “TURN” on its side, a nod to the Motocompo’s fuel cock, while the caseback uses mineral glass with dedicated logos.

On the dial, black embossed Arabic numerals sit alongside Lumibrite markers and blackened hands with Lumibrite.

A horizontal black bar bearing the Honda logo crosses the dial, echoing the protective side bars of the Motocompo.

The “Automatic” script also borrows the feel of the Motocompo’s own lettering, a small detail that will likely appeal to collectors who enjoy collaborations with more than surface-level branding.

Functionally, the watch stays true to the Seiko 5 formula with a day-date display, here fitted with black discs to keep the graphic treatment consistent.

The black nylon strap continues the theme, with loop markings reading “Carrying Point” and a strap tip marked “Insertion Point,” referencing the way the compact Honda could be secured in a car.

Familiar Seiko mechanics beneath the playful exterior

Inside is Seiko’s calibre 4R36, an automatic movement used widely across the Seiko 5 family.

It runs at 21,600 vibrations per hour, has 24 jewels, offers stop-seconds functionality and delivers a 41-hour power reserve.

Water resistance is rated to 100 metres, while the front crystal is curved Hardlex, keeping the HDB010 in familiar Seiko 5 Sports territory rather than pushing it into a higher price bracket.

The watch will be delivered in special packaging designed to resemble the corrugated carton used to ship the Motocompo, which is exactly the kind of detail that makes this release more interesting as a complete collector’s object.

Details & Specifications

The HDB010 is the kind of Seiko 5 Sports collaboration that knows exactly what it wants to be: affordable, specific, a little eccentric and rich in small design references for Honda fans.

For collectors who like their mechanical watches with a hit of Japanese pop culture and practical daily-wear proportions, this one should be firmly on the radar for 2026.