In Depth · Unimatic

Can E. Marinella’s pattern improve a Unimatic GMT?

A 100-piece Japan-only collaboration puts Neapolitan tie patterns on Unimatic’s 300-metre Modello Quattro. The dial must still do its job.

Hen & Mills Editorial · 4 min read · 11 October 2026

• The U4-GMT-EMJDM pairs a debossed E. Marinella blue dial with Unimatic’s 40 mm brushed-steel Modello Quattro case.
• Its NH34A automatic movement drives a separate GMT hand; Unimatic individually tests the watch to 300 metres of water resistance.
• The 100-piece edition is listed at JPY 230,000 excluding VAT through Japanese channels, without international shipping.

A collaboration can leave a tool watch with a partner's logo and little else. The Unimatic x E. Marinella Modello Quattro U4-GMT-EMJDM asks a more interesting question: can the pattern language of a Neapolitan tie maker change how a stark military-style GMT feels without making it harder to use? On paper, this 100-piece watch keeps the substantial Modello Quattro case and automatic GMT movement. The partner's contribution is concentrated where a wearer will look most often, on the blue dial, strap and engraved back.

Pattern without losing the hour

E. Marinella's blue appears on a dial with a debossed micro-pattern. Against it, Unimatic places matte-white markers, a minute track and large hands. The GMT hand is black, with a hollow arrow tip filled with Super-LumiNova BG W9, while the hour and minute hands use the same luminous material. That contrast is the functional test of the design. A textured surface can make a watch look richer in a photograph; it succeeds as a travel dial only if the ordinary time and the 24-hour indication remain separable at a glance.

Here, the 24-hour numerals run around the dial perimeter, outside the hour markers, so the second-zone hand has its own destination. The date sits at six. It is a more orderly layout than putting the whole travel function on an external city ring, but it also means there is no quick city lookup on the watch itself. Unimatic calls this a GMT, and its technical material identifies an NH34A automatic movement. It does not claim an independently jumping local-hour hand. Buyers who change cities frequently should understand what that movement and dial actually offer rather than assume every GMT sets the same way.

The caseback is engraved with an E. Marinella tie motif and each watch's individual number. That is a sensible place for the most explicit collaboration mark. On the front, the pattern and blue are enough to distinguish the model while leaving the minute track legible. The matching double-layer nylon strap has quick-release fittings and Unimatic embroidery. The connection with a maker founded in Naples in 1914 is visible, but the watch does not attempt to turn a diver-shaped case into a dress watch.

The tool-watch part stays serious

The brushed 316L steel case measures 40 mm across. Unimatic's downloadable technical sheet gives a 49 mm lug-to-lug length and 13.8 mm thickness without the sapphire lens, or 14.1 mm with it. That is a sizeable object, particularly on a soft fabric strap, though the specification cannot tell us how it will sit on every wrist. The drilled lugs take a 22 mm strap. Its fixed monoblock bezel cannot serve as a rotating dive timer, even though the case is individually tested to 300 metres of water resistance.

A flat sapphire crystal is 2.8 mm thick with an anti-reflective treatment on the inside. Unimatic specifies an eight-millimetre crown and a screwed caseback. The NH34A movement beats at 21,600 vibrations an hour, has hacking seconds and can be wound by hand. Its stated reserve is more than 41 hours. Those are practical, familiar movement characteristics rather than a claim of high-end mechanical novelty. They fit a watch whose point is an unusual presentation of a robust, understandable travel display.

The question of legibility is not fully answerable from a specification sheet. The brand's images show clear white hands against the blue texture, and the GMT tip carries lume, but we have not handled the watch or checked it in changing light. The darker GMT shaft may recede into the dial, which could help keep ordinary time dominant. It could also make the second zone less immediate. What the official materials establish is the layout and luminous treatment; the choice between those trade-offs belongs to the buyer.

Price and availability

Unimatic lists the U4-GMT-EMJDM at JPY 230,000 excluding VAT, exclusively through Floens online in Japan and selected E. Marinella retail locations. The product page explicitly says international shipping is unavailable. There is therefore no Australian retail price to quote and no sensible currency conversion that would replace one. For a reader in Australia, access is a larger obstacle than deciding whether the pattern works. The numbered run is limited to 100 pieces.

As an object, the collaboration has a coherent answer to its own question. The tie maker's graphic identity reaches the dial, strap and caseback, while the GMT scale and 300-metre case remain recognisably Unimatic. That does not make the watch small, inexpensive or easy to obtain from here. It does make the pattern more than a badge, which is a better reason for this partnership to exist than most collaborations manage.