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U-Boat Classico Tungsteno Chronograph Automatic Watch
Colour: Green
· Ref: 9581
£3,000£3,750
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Colour: Green
Authenticity
Authorized U-Boat dealer
Warranty
Official U-Boat warranty
Shipping
Free · DHL Express
Returns
30 days from delivery
Overview
U-Boat Classico Tungsteno Chronograph Automatic Watch with Green Dial.
Descended from the diving watch Ilvo Fontana drew in 1942 for the Italian naval forces, the Classico line carries the left-hand crown that drawing placed there. The Classico Tungsteno Chronograph times elapsed intervals beneath a polished tungsten bezel, from a crown extraction lever at 8:30. At 45 mm in diameter, the case is stainless steel 316L.
A mechanical automatic chronograph movement powers the hours, minutes, seconds, a chronograph, date and a 24-hour indicator beneath a sapphire crystal with anti-reflective treatment. A crown extraction lever sits at 8:30, while the steel case back is closed with seven screws and opens in a U-shaped sapphire window over the movement. The bezel is polished tungsten and the 24-hour hand is red.
Green, the dial is built on three levels of metal, its hands and indices treated with Superluminova for legibility in the dark. The watch comes on a lasered leather strap aged by a natural process and handmade in Tuscany, measuring 22 mm at the lugs, closed by a steel tongue buckle.
At a glance
- Chronograph
- Dial cut on stepped levels
- Polished tungsten bezel
- 62-hour power reserve
- Exhibition case back
- Patented left-hand crown guard
- Superluminova on hands and indices
Specs
Movement
Type
Automatic
Power reserve
62 Hours
Frequency
28800 A/h
Jewels
25 jewels
Case
Material
Stainless Steel 316L
Diameter
45 mm
Crystal
Anti-reflective Sapphire
Case-back crystal
Sapphire Glass
Crown
Patented crown protection system
Case back
Screw-fastened
Dial
Color
Green
Calendar
Day
Lume
Hands and indices
Lume material
Superluminova
Water resistance
Rating
10 atm
Strap
Material
Leather
Color
brown
Width
22mm
Clasp
Type
Buckle
General
Gender
Men
Country of manufacture
Italy
Warranty
3 years
Questions & Answers
Why does the crown sit on the left?
It comes from a watch Ilvo Fontana drew in 1942 for the Italian naval forces, a diver whose crown sat on the left so the hands could be set from that side. His grandson Italo Fontana founded U-Boat in Lucca around that drawing, and the patented clamp over the crown is the part he added.
How do you use the chronograph?
The upper pusher starts and stops the timing hand, and the lower pusher returns it to zero. The registers on the dial carry the minutes and the hours that the central hand has counted beyond its first turn.
Why is the bezel made of tungsten?
Tungsten is far harder than steel, so a polished tungsten bezel holds its mirror finish through the knocks that would dull a steel one. U-Boat took it up as one of its own innovations, alongside the crown on the left and the patented release that frees it from its stop.
What can you see through the case back?
The movement from the bridge side, with the oscillating weight that winds the mainspring as the wrist moves and the balance swinging at the far end. That weight is cut open so the gear train stays in view behind it.
How does a 45 mm case sit on the wrist?
It is a large watch and it is built to read as one. Compare the figure against a watch you already own before you order, because the diameter is what decides this and it is the measurement a photograph flattens. A loose cuff will pass over it.
Still have questions?
Talk to a specialist
Verified Reviews
FAQ
Yes, we are an Official U-Boat Authorised Dealer, and an authorised dealer for every brand we carry.
With over 15 years in the luxury market, we guarantee the authenticity and quality of every piece we sell.
Your order arrives brand new in its original U-Boat packaging, with all official documentation and the U-Boat warranty card, stamped and dated by us.
The warranty covers manufacturing defects. It doesn't cover normal wear and tear or accidental damage — and on watches, it doesn't cover straps, bracelets, or batteries.
Questions about a specific piece? Our specialists are happy to help. [Contact our team →]
Questions about a specific piece? Our specialists are happy to help.
Yes — free DHL Express shipping on all UK orders of £400 or more.
- Orders from £150 to £399.99 ship DHL Express for a flat £9.90
- Orders under £150 ship DHL Express for a flat £19.90
Every order ships with a tracking number, so you can follow your package every step of the way. Shipments are fully insured and delivered by DHL Express with signature required.
Most in-stock orders arrive within 1-2 working days of dispatch.
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Our prices include VAT, and nothing is added beyond the delivery charge shown.
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No handling charges, no processing fees, nothing added at the door.
We accept all major credit and debit cards, Apple Pay, Google Pay, PayPal, and bank transfer.
- Credit and debit cards — Visa, Mastercard, American Express
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- Bank transfer — often the preference on higher-value orders
Every transaction is fully encrypted, and we never store your card details.
Paying in instalments. Choose PayPal at checkout and you may be offered the option to spread the cost, including interest-free plans on qualifying orders. Plans, terms and eligibility are set by PayPal and shown before you confirm, with no obligation.
Paying by wire, or buying more than one piece? [Contact our team →] and we'll take care of you personally.
You'll find availability on every product page, right above the Add to Cart button. Here's what each status means:
"Dispatched next working day" or "Only 1 left" — the piece is in our warehouse and leaves the working day after you order.
"Dispatched within X working days" — the piece is held at our secondary warehouse. We allow a few days to inspect and authenticate it before dispatch.
"Check delivery date" — the piece is available to order, but we confirm the exact date with the brand. As soon as you order, we contact the manufacturer and email you an estimated date.
Need something by a specific date? Tell us and we'll check before you buy. [Contact our team →]
You have 30 days from delivery to return your order.
How returns work. Just let us know and we'll email you a prepaid DHL Express return label — you never have to arrange a shipment or pay anything up front. The return cost is deducted from your refund. If the piece arrived damaged or wasn't what you ordered, the return is on us.
Your refund options.
- Credit (issued as a gift card) — processed almost immediately once your return reaches us
- Refund to your original payment method — typically 5–10 working days, depending on your bank
To qualify for a full refund, the piece must:
- Be unused and in perfect condition, with no signs of wear
- Include its original packaging and outer box
- Include all original documentation, accessories, and the warranty card
- Not be engraved or personalised — custom pieces are made to order and can't be returned
Not sure whether something qualifies? Ask us before you ship it back — we'll tell you straight. Contact our team.
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Still have questions?
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