Authorised U-Boat Retailer
U-Boat Classico Sommerso Automatic Watch
Colour: Black
· Ref: 9007/A
$4,566$5,073
save $507 · 9% off
GST included · Free express shipping
Colour: Black
Authenticity
Authorised U-Boat dealer
Warranty
Official U-Boat warranty
Shipping
Free · DHL Express
Returns
30 days from delivery
Overview
The 46 mm U-Boat Classico Sommerso is the Classico built for the water, with a unidirectional dive bezel, a three-level black dial, and a visible ruby.
Built for the water
The watch is water-resistant to 300 meters, ready for swimming and diving. The graduated bezel turns in one direction only and lets you time elapsed minutes underwater.
A layered dial with a visible ruby
Three overlapping layers make up the black dial, and brushed steel frames outline each large Arabic numeral. Beige Super-LumiNova covers the hands and hour markers, and the ruby adds a small red detail at 6 o’clock. Anti-reflective sapphire covers the dial, with a magnifying lens over the date window.
Rooted in a 1942 naval design
The Classico’s large numerals and protected left-side crown come from Ilvo Fontana’s 1942 plans for an Italian Navy watch that was never built. His grandson Italo revived the design in Lucca. On the Sommerso, the screw-down crown sits beneath U-Boat’s patented protector.
The details
The 46 mm case is satin-finished 316L stainless steel. Seven screws secure the case back, which is engraved with a submarine mine. A separate plate on the side of the case carries the serial number.
The Swiss U-28 automatic movement displays the hours, minutes, and seconds, along with the date and a 24-hour indication. It runs at 28,800 vibrations per hour, with 25 jewels and a 38-hour power reserve.
The black vulcanized rubber strap has a calfskin lining with a Kodiak water-repellent treatment. It measures 22 mm at the lugs and closes with a stainless steel pin buckle. The watch is made in Italy.
At a glance
- 24-hour indication
- Unidirectional dive bezel
- U-28 automatic caliber
- 38-hour power reserve
- 30 atm water resistance
- Magnified date aperture
- Ruby set at 6 o'clock
Specs
Movement
Type
Automatic
Calibre
U-28
Power reserve
38 Hours
Frequency
28800 A/h
Jewels
25 jewels
Case
Material
Stainless Steel 316L
Diameter
46 mm
Crystal
Sapphire
Crown
Patented crown protection system
Case back
Screw-fastened
Dial
Color
Black
Calendar
Date (magnified)
Lume
Hands and indices
Water resistance
Rating
30 atm
Strap
Material
Rubber
Color
Black
Width
22 mm
Clasp
Type
Buckle
General
Country of manufacture
Italy
Questions & Answers
How do I read elapsed time on the rotating bezel?
Align its reference marker with the minute hand at the start of an interval, then read elapsed minutes against the bezel scale. Its one-way rotation means an accidental turn can increase the elapsed time shown, rather than reduce it.
What does the 24-hour display tell me?
It distinguishes morning from evening. The main hour hand goes around the dial twice a day, while the 24-hour hand makes one full turn; read it against its own scale to tell, for example, 4 a.m. from 4 p.m.
What gives the Sommerso dial its depth?
Three overlapping dial layers create the relief around the numerals and markers. A visible ruby at 6 o’clock adds a small red detail within that layered construction.
Is the strap on this reference leather or rubber?
The main strap is black vulcanized rubber, with a calfskin lining underneath. Kodiak treatment makes the lining water-repellent; it does not change the strap’s main material.
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.
Yes — free DHL Express shipping on all Australian orders of A$1,000 or more.
- Orders from A$500 to A$999.99 ship DHL Express for a flat $29.90
- Orders under A$500 ship DHL Express for a flat $59.00
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 3-5 business days of dispatch, depending on your location.
No, the price you see at checkout is the price you pay — nothing else.
Our price include GST. The price you pay at checkout is the final price of the item delivered to your address.
DHL will never ask you for a payment on delivery, and no surprise invoice arrives afterward.
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 wire transfer.
- Credit and debit cards — Visa, Mastercard, American Express
- Apple Pay and Google Pay — one-tap checkout, nothing to type
- PayPal — with PayPal Buyer Protection on every purchase.
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 split your purchase into payments, including interest-free plans on qualifying orders. Plans, terms and eligibility are set by PayPal and shown before you confirm, with no obligation to take it.You'll see exactly what's available for your order before you confirm — plans, terms, and eligibility are set by PayPal and subject to their approval, with no obligation to take it.
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:
"In stock, ships next business day" or "Only X units left" — the item is in our warehouse and ships the business day after you order.
"In stock, ships within X days" — the item is held at our secondary warehouse. We allow a few days to inspect and authenticate it before it ships.
"Check delivery date" — the item 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 delivery 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 shipping cost is deducted from your refund. If the item arrived damaged or wasn't what you ordered, the return is on us.
Your refund options.
- Store credit (issued as a gift card) — processed almost immediately once your return reaches us
- Refund to your original payment method — typically 5–10 business days to appear, depending on your bank or card issuer
To qualify for a full refund, the item 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 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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