Authorized U-Boat Retailer

U-Boat U-Boat Rollerball pen

Color: Black  · Ref: 4021
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Color: Black
Authenticity
Authorized U-Boat dealer
Warranty
Official U-Boat warranty
Shipping
DHL Express - with tracking
Returns
30 days from delivery

Overview

U-Boat Accessories Industrial Brass Rollerball Pen in Black.

Engineered from solid heavy-gauge brass, this industrial writing instrument reflects U-Boat's distinctive mechanical design philosophy. The robust metal body features precision-machined surface grooves and an aged patina finish, providing exceptional tactile grip and structural mass. It is a purpose-built Italian writing tool designed for heavy daily utility.

The internal mechanism houses a high-precision German rollerball refill cartridge, engineered for effortless ink flow and consistent line density across paper surfaces. A heavy-duty screw-cap system seals the nib cavity to prevent ink drying, while a solid steel pocket clip secures the pen during transportation.

The weighted brass barrel delivers optimal balance in the hand, reducing writing fatigue during extended sessions. The unpolished metallic finish develops a rich individual patina through handling, enhancing its rugged industrial character over time. It is supplied in an official U-Boat protective case for long-term storage.

At a glance
  • Pvd body with DLC trim
  • Screw-on closure
  • Takes original Refill
  • Design matched to the fountain pen of the same range

Specs

Material
PVD
Country of manufacture
Italy
Body
Material PVD
Color Black
Trim DLC
Product
Model U-Boat pen
Clasp
System Screw-on
Refill
System Original Refill
Dimensions
Length 142 mm
Width 19 mm
Weight
Total 60 g
General
Warranty 3 years
Country of manufacture Italy

Questions & Answers

What refill does it use?

It takes original Refill, available in several colours and line widths.

How is the refill changed?

Unscrew the cap to reach the spent refill and replace it.

Is it the same piece as the fountain pen in the range?

It shares design and finishes, though the pen and rollerball are sold separately.

How does the cap close?

It screws on. Every pen in this line uses a screw-on closing system.

What warranty does it carry?

It includes 3 years of official U-Boat warranty.

How is the pvd cared for?

Wipe it with a soft slightly damp cloth, avoiding solvents and abrasive products.

Still have questions? Talk to a specialist

Verified Reviews

FAQ

Yes, we are an Official U-Boat Authorized Dealer, and an authorized 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.

Please contact our team.

You'll find availability on every product page, right above the Add to Cart button. Here's what each status means:

"In stock, ships within 24 hours" or "Only X units left" — the item is in our warehouse and ships the next 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 →]

Yes — free DHL Express shipping on all US orders of $250 or more.

  • Orders from $150 to $249.99 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 2–3 business days, depending on your location.

No, the price you see at checkout is the price you pay — nothing else.

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
  • Bank wire transfer — often the preference on higher-value orders

Every transaction is fully encrypted, and we never store your card details.

Financing. Choose PayPal at checkout and you may be offered the option to split your purchase into payments or finance it over time, including interest-free plans on qualifying orders. 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 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.

TALK TO A SPECIALIST

Still have questions?

Our specialists are here before and after you buy — no pressure, no obligation. Authorized dealer, official warranty, and guaranteed authenticity on every piece.