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IWC Portuguese VS. Panerai Luminor

Which one of these watches is better?

These two watchmakers have been around for quite some time. Panerai has been making watches since 1860 and IWC Schaffhausen was around since 1868. Both have manufactured some amazing watches over the years. One may even say that as watchmakers, they are quite evenly matched. But what if we were to take two of their more famous watches and benchmark them, one against the other?

Comparing two watches using a side by side comparison seems to shed more light than just talking about them. Let's take the IWC Portuguese Automatic Chronograph and pin it up against the Panerai Luminor Marina 8 Days. The two models we are comparing are the IWC model# IW371447 and the Panerai model# pam00510. They are very close in price and some say that Panerai watches tend to have a slightly higher resale value than IWC watches. But as with any luxury watch brand, this is not a blanket statement and as a rule only applies to certain models.

 

IWC Portuguese Automatic Chronograph

From a mechanical perspective, the IWC Portuguese Automatic Chronograph may be more convenient for some since it is a self-winding / automatic watch. It also has a nice polished look which looks classy even though it features a chronograph complication which is generally considered to be sporty. The chronograph uses a large central seconds hand counter and a 30 minute counter at the 12 o'clock position. As far as features go, this feature is the IWC's main advantage over the Luminor. The IWC has an alligator leather strap with a folding buckle and solid case back. The water resistance is only 30m/99ft resistance and this watch has a 44 hour power reserve which is considered average however, the newer IWC Portugisier Automatics have a 7 day power reserve and the IWC Portuguese Hand Wound Eight Days has a an 8 day power reserve which is more comparable to the Panerai Luminor's 8 days.

PROS

Complications
There is a chronograph (stopwatch function) built into this watch
Style Options
The Portuguese and Portugieser is a large collection with many different style options
Movement
Many people prefer an Automatic / Self winding movement over a manual wind movement.

CONS

Water Resistance
The Portuguese Automatic Chronograph can only withstant about 10% of the underwater pressure as a Panerai Luminor 8 Days
VPH
The IWC Automatic Chronograph uses a high beat movement compared to the Panerai which uses a low beat movement. Although a high beat caliber is required for a chronograph to have higher accuracy with regards to split second timing, higher beat movements may also require more frequent maintenance.
Power Reserve
The IWC Portuguese Automatic Chronograph has a power reserve of only 44 hours whereas the Panerai Luminor Marina 8 days has a power reserve that lasts for 8 Days / 192 hours.

Panerai Luminor Marina 8 Days

Panerai Luminor Marina 8 Days is a manual wind watch and for some, that could be a make-it-or-break-it point, especially if they expect to wear the watch every day. Aesthetically they are very similar, black dial, steel case while the Luminor has a calfskin black strap with accent stitching and a pin buckle and a see-through case back. Some like the classy look of the IWC while others are looking for a more versatile look that can be either dressy or sporty. The Panerai also has better water resistance than the IWC. This Luminor model has 300m / 984 ft water resistance. As per the series name, the power reserve is an impressive 8 days / 192 hours which makes the 44 hour power reserve on the IWC look like amateur hour. However, IWC does have a several watches with 7 day power reserves and even 8 day power reserves as well.

PROS

Water Resistance
The Panerai Luminor Marina 8 Days can withstant about 10 times the underwater pressure as the IWC.
Price
The Panerai Luminor Marina 8 Days is more affordable than the IWC by over a thousand dollars.
Power Reserve
The Panerai Luminor Marina has a power reserve that lasts for 8 Days / 192 hours whereas the IWC is only 44 hours.
VPH
The Panerai in-house Caliber P.5000 uses a low beat movement compared to the IWC which uses a high beat movement meaning less frequent maintenance.

CONS

Complications
There isn't a chronograph (stopwatch function) built into this watch like the IWC
Style Options
The Panerai is not as large of a collection with as many different style options as the IWC Portuguese or IWC Portugieser
Movement
Most people wouldn't prefer a manual wind movement over an automatic / self winding movement.

Here is a side by side comparison of the IWC Portuguese Automatic Chronograph VS Panerai Luminor Marina 8 Days specifications, features and more.

  IWC Portuguese Panerai Luminor
Brand IWC Panerai
Series Portuguese Automatic Chronograph Luminor Marina 8 Days
Model # IW371447 pam00510
Size Mens Mens
Case Material Stainless Steel Stainless Steel
Dial Color Black Black
Number of Sub Dials

2 Sub-dials

  • 30 minute counter at 12 o'clock position
  • Small running seconds sub-dial at 6 o'clock position

1 Sub-dial

  • Small Seconds at 9 o'clock position)
Bracelet/Strap Black Alligator / Crocodile Leather

This watch comes with two straps

  • Black Calfskin Leather with beige leather stitching
  • Comes with a rubber strap and necessary tools.
Clasp Type Folding Buckle Pin Buckle / Tang Clasp
Movement IWC Calibre 79350 Panerai in-house Caliber P.5000 
Movement Type Automatic / Self-Winding Manual Wind
VPH 28,800 21,600
Jewels 31 21
Bezel Fixed Fixed
Crystal Anti-Reflective, Scratch Resistant Sapphire Anti-Reflective, Scratch Resistant Sapphire Cambered (Domed)
Case Back Solid Transparent / See-Through
Water Resistance 30m / 98ft 300m / 984ft
Case Diameter 40.9mm 44mm x 44mm (excluding crown and lugs)
Complications Chronograph & Small Seconds Sub Dial Small Seconds Sub Dial
Power Reserve Approximately 44 Hours Approximately 8 Days / 192 Hours
 

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