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IWC Pilot’s Watch Mark XVIII Edition “Le Petit Prince”: What the References Actually Offer

The Mark XVIII “Le Petit Prince” comes in distinct references. Compare their documented movements and wristwear, and learn why the reference number matters.
Estimate2–3 min Catalogued SpecialistWatchRanker Team
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The IWC Pilot’s Watch Mark XVIII Edition “Le Petit Prince” is a 40 mm stainless-steel pilot’s watch with a blue dial, but the exact reference matters: IW327004, IW327010 and IW327014 differ in strap or bracelet and movement calibre. IWC lists all three as past-collection models, so this guide identifies the documented variants rather than treating them as one interchangeable configuration.

Which Mark XVIII “Le Petit Prince” is it?

Start with the reference number, not just the edition name. IWC’s product pages document three relevant Mark XVIII references, all with a 40 mm case, 11 mm height, 6 bar water resistance and a 42-hour power reserve. Their movement calibres and supplied wristwear differ.

Reference Documented strap or bracelet Movement Published specifications and functions
IW327004 Brown Santoni calfskin strap Automatic calibre 30110; 42-hour power reserve 40 mm diameter; 11 mm height; 6 bar water resistance; date display; central hacking seconds; soft-iron inner case; antireflective sapphire crystal secured against pressure-drop displacement. IWC specifications
IW327010 Brown calfskin strap Automatic calibre 35111; 42-hour power reserve 40 mm diameter; 11 mm height; 6 bar water resistance; date display; central hacking seconds; soft-iron inner case; antireflective sapphire crystal secured against pressure-drop displacement. IWC specifications
IW327014 Stainless-steel bracelet Automatic calibre 30110; 42-hour power reserve 40 mm diameter; 11 mm height; 6 bar water resistance; date display; central hacking seconds; soft-iron inner case; antireflective sapphire crystal secured against pressure-drop displacement. IWC specifications

What is shared across these variants?

Each of the three checked references pairs a stainless-steel case with a blue dial and publishes the same core dimensions, water-resistance rating, functions and reserve. The listed functions include a date display and central hacking seconds. IWC also specifies a soft-iron inner case and an antireflective sapphire crystal secured against displacement if pressure drops.

The shared specification does not make the references identical. IW327010 is listed with calibre 35111, while IW327004 and IW327014 use calibre 30110. IWC gives a 42-hour reserve for each; the official pages cited here do not establish further comparative performance or a reason to prefer one calibre.

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#1 Best Overall
GANYUU Genuine Leather Watchband for IWC Mark XVIII Le Petit Prince Pilot’s Watch 20mm 21mm 22mm Cowhide Strap (Color : Brown White Silver, Size : 20mm)
  • 100%brand new and quality,easy to adjust the length to fit the wrist,one size fits everyone.
  • Made Italian cowhide material ,environmentally friendly and healthy,Softness is moderate, wear very comfortable.
  • Softness is moderate, wear very comfortable,Compression molding, sturdy and durable,Wearable strap/wrist strap,suitable for original watch.
  • Easy to insert and remove,very suitable for your watch.
  • Exquisite craftsmanship and stylish design are perfect gifts for friends and family.

What does “hands-on” tell you—and what does it not?

A meaningful hands-on account should identify which reference was actually handled. The edition name alone does not establish whether the watch had the Santoni strap, another brown calfskin strap or the steel bracelet, nor does it establish which calibre was inside. The available official specifications support a comparison of documented configurations, but they do not verify an individual watch’s condition, service history, authenticity or ownership history.

For a pre-owned example, check the watch and listing directly. Confirm the reference on the watch and its documentation, verify that the bracelet or strap matches the seller’s description, and ask for condition details, provenance, service records, included accessories, seller reputation and return terms. IWC’s product pages are not evidence of any individual listing’s accuracy.

Rank #2
XSAZR 20mm 21mm 22mm Rubber Silicone Black Blue Watchbands for IWC PILOT Mark 18 Watch Sports Strap(Black blue,20mm)
  • XSAZR 20mm 21mm 22mm Rubber Silicone Black Blue Watchbands for IWC PILOT Mark 18 Watch Sports Strap

Are the Mark XVIII editions still available?

IWC identifies the IW327010 as a past-collection model, and the product pages for these references belong to its past-collection range. That status does not establish whether a particular retailer or pre-owned seller currently has one in stock. Availability, asking prices and market value need to be checked against current listings; no current price or market valuation is established here. IWC’s past-collection page for IW327010

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How the 2026 anniversary watches fit in

IWC’s April 14, 2026 announcement introduced five Le Petit Prince anniversary Pilot’s Watches, including two Mark XX editions, references IW328301 and IW328221. They are newer Mark XX watches, not Mark XVIII variants, and should not be folded into the comparison above. IWC announcement, April 14, 2026

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Quick Recap

Bestseller No. 1
GANYUU Genuine Leather Watchband for IWC Mark XVIII Le Petit Prince Pilot’s Watch 20mm 21mm 22mm Cowhide Strap (Color : Brown White Silver, Size : 20mm)
GANYUU Genuine Leather Watchband for IWC Mark XVIII Le Petit Prince Pilot’s Watch 20mm 21mm 22mm Cowhide Strap (Color : Brown White Silver, Size : 20mm)
Easy to insert and remove,very suitable for your watch.; Exquisite craftsmanship and stylish design are perfect gifts for friends and family.
$57.54
Bestseller No. 3
XIRIXX For IWC Pilot Bracelet Mark 17 18 Little Prince IW377717 Watch Band 20mm 21mm Stainless Steel Watch Strap(20mm)
XIRIXX For IWC Pilot Bracelet Mark 17 18 Little Prince IW377717 Watch Band 20mm 21mm Stainless Steel Watch Strap(20mm)
New quality, easy to adjust the length to fit the wrist, one size fits everyone.; Made top 316 L Stainless Steel material,environmentally friendly and healthy
$213.27
Rank #3
XIRIXX For IWC Pilot Bracelet Mark 17 18 Little Prince IW377717 Watch Band 20mm 21mm Stainless Steel Watch Strap(20mm)
  • New quality, easy to adjust the length to fit the wrist, one size fits everyone.
  • Made top 316 L Stainless Steel material,environmentally friendly and healthy
  • Wearable strap/wrist strap,suitable for original watch
  • Easy to insert and remove,very suitable for your watch
  • Exquisite craftsmanship and stylish design are perfect gifts for friends and family.

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

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