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Description
Ingenieur Perpetual Calendar 41The Ingenieur Perpetual Calendar 41 is the first titanium model to combine the Grald Genta inspired Ingenieur design with the perpetual calendar developed by Kurt Klaus. Overview Reference: IW344904 Dial Color: Grey Case: Titanium Strap: Titanium bracelet Diameter: 41. 6 mm Movement: Automatic, self winding, IWC manufactured movement Features Sapphire glass, convex, antireflective coating on both sides Glass secured against displacement by drop in air
The Ingenieur Perpetual Calendar 41 is the first titanium model to combine the Gérald Genta-inspired Ingenieur design with the perpetual calendar developed by Kurt Klaus.Overview
Reference: IW344904
Dial Color: Grey
Case: Titanium
Strap: Titanium bracelet
Diameter: 41.6 mm
Movement: Automatic, self-winding, IWC-manufactured movement
Features
Sapphire glass, convex, antireflective coating on both sides
Glass secured against displacement by drop in air pressure
Pellaton automatic winding
Perpetual calendar with displays for the date, day, month, leap year and perpetual moon phase
Case
Case: Titanium
Diameter: 41.6 mm
Height: 13.2 mm
Water Resistance: 10 Bar
Back case: With synthetic sapphire crystal
Movement
Caliber: 82600
Movement type: Automatic, self-winding
IWC-manufactured movement: Yes
Power Reserve: 60 hours
Frequency: 28800 Vph (4 Hz)
Components: 309
Jewels: 46
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 5
Highly recommend
Size: King
These pillows are super comfortable and feel just like hotel quality. They’re soft but still give great support for my neck and head. I’ve been sleeping much better since I got them.
They stay fluffy and don’t go flat, and the material feels nice and cool. Definitely a great purchase
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Reviewed in the United States on April 10, 2026
★★★★★ 5
Perfect Comfort Every Night 💤
Size: King
Super comfy pillows! Perfect mix of soft and supportive, and they don’t go flat. Sleep feels way better—definitely recommend 😊
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Reviewed in the United States on April 2, 2026
★★★★★ 5
Time will tell
Size: King
I won’t actually use these for a few days when my mattress arrives. Unboxed this morning and they are not as plump and full as I expected but they’re laying out to expand. Overall first impression is they felt comfortable and I could adjust them with my hands. They seem well made and durable. Cant say anything yet about firmness or shape retention since I’ve not used them. They feel like they will be soft. So time will tell but so far I’m loving what I see.
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Reviewed in the United States on April 28, 2026
★★★★★ 5
HOTEL pillows King Quality is Great
Size: King
Just got these pillows today. I have never spent dollars on pillows; but I wanted Hotel Grand like the ones that I sleep on in the Hotels and these fit the bill. Large King is what I got and so far so good. Firm and Squishy like I like. I was impressed with the quality -- now lets just give them a few days rest. I am sure they will be GRAND.
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Reviewed in the United States on April 18, 2026
★★★★★ 5
Hotel Grand Pillows
Size: King
Very soft, comfortable and fluffy. I’m a side sleeper and don’t feel they go flat. I bought 2 king size pillows. I was initially looking for fluffy feather pillows… but this is the next best thing. I was pleasantly surprised. Turned out to be more comfortable than I thought they would be.
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Reviewed in the United States on April 4, 2026