Authorised U-Boat Retailer

U-Boat Capsoil Darkmoon Soleil Red IPB Quartz Watch

Colour: Red  · Ref: 8697
$2,243$2,492 save $249 · 9% off
GST included · Free express shipping
Colour: Red
Authenticity
Authorised U-Boat dealer
Warranty
Official U-Boat warranty
Shipping
Free · DHL Express
Returns
30 days from delivery

Overview

The 44 mm U-Boat Darkmoon Soleil Red IPB has a red sunray dial beneath domed sapphire, set in oil that deepens the red.

A sunray dial in oil

Fine brushing radiates across the red dial, changing its reflections as the light moves. Seen through oil, the hands seem to sit closer to the crystal. Together, the brushed dial and the oil give this Soleil version its retro character. Super-LumiNova on the hands and hour markers adds a luminous contrast in low light.

Oil throughout the case

The oil also surrounds the Swiss Ronda 712.3 quartz movement, lubricating it as it runs. A visible compensation bubble shifts as the watch changes position and leaves room for the oil to expand or contract with temperature. The oil has its own opening, used only by U-Boat’s specialized technicians. U-Boat specifies an operating temperature range of 32–140°F (0–60°C) and advises against prolonged exposure to sunlight or heat.

Rooted in a 1942 naval design

The left-side crown comes 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 Darkmoon, the screw-down crown has a double security system.

The details

The 44 mm case is 316L stainless steel with a black PVD finish and is water-resistant to 50 meters. The screw-down back incorporates U-Boat’s Locking Ring System for quick access to the battery.

The black silicone strap measures 22 mm at the lugs and closes with a stainless steel pin buckle. The watch is made in Italy.

At a glance
  • Red Soleil sunray dial
  • Oil-filled display with moving compensation bubble
  • Swiss Ronda 712.3 quartz movement
  • 44 mm 316L stainless steel case with black PVD finish
  • Domed sapphire crystal
  • Super-LumiNova hands and hour markers
  • Double-security screw-down crown
  • Locking Ring System for battery access
  • 22 mm black silicone strap

Specs

General
Collection Capsoil
Country of manufacture Italy
Operating temperature 0–60 °C
Movement
Type Quartz
Calibre Ronda 712.3
Case
Material Stainless Steel 316L
Finish PVD
Crystal Domed sapphire
Diameter 44 mm
Crown Screw-down crown
Case back Screw-down
Oil fill Oil-filled display with compensation bubble
Dial
Color Red
Lume material Super-LumiNova
Lume Hands and indices
Finish Soleil sunray
Water resistance
Rating 5 atm
Strap
Material Silicone
Color Black
Width 22 mm
Clasp
Type Buckle
Material Stainless Steel
Crown
Security Double security system
Position Left side
Service
Access Separate battery-access compartment and oil-adjustment opening; oil adjustment reserved for U-Boat specialized technicians
Collection
Soleil dial colors Blue, green, brown, red

Questions & Answers

What does the Soleil finish add to the dial?

Fine brushing spreads outward in a sunray pattern, changing how the red surface reflects light. Soleil is the finish, rather than a single color; the collection also includes blue, green, and brown dials.

Why does a bubble move across the dial?

The bubble is an intentional part of the oil-filled construction. It leaves room for the oil to change volume with temperature and moves as the watch changes position.

How are battery replacement and oil servicing handled?

The Locking Ring System provides a compartment for battery access. A separate opening is used for oil adjustment, which U-Boat reserves for its specialized technicians. Battery replacement should be handled by a service center.

Still have questions? Talk to a specialist

Verified Reviews

  • 5 stars: 2 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
E
Eddie M.
Great service from start to finish

Watch is even better looking on wrist, iguana service kept me updated throughout delivery, would definitely buy from them again although wife has said that was my last watch EVER!!!

G
Gareth K. (London, United Kingdom)
Beautiful U-Boat

Absolutely stunning watch. I get on with winders on the left much better than the standard right side, which dig into my wrist/back of my hand. Very easy to read the time, even in dim, twilight, lighting. Simply beautiful.

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.

Please contact our team.

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.

TALK TO A SPECIALIST

Still have questions?

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