IWC Pilot IW378001

IWC Pilot IW378001 is a pre-owned watch, inspected by our certified watchmaker in Geneva and offered by WATCHOYSTER. It ships worldwide, fully insured.

The photos show the actual watch, and the sections below cover what matters when you choose between examples of this reference.

Design and case

Black dials like this one are the first thing anyone sees, and on a pre-owned watch the dial is also where originality matters most, so study the photos for even colouring and clean printing. Hour markers of the "Arabic numerals" type decide how formal the dial looks and how quickly the time can be read. Sapphire crystal protects the dial, and the material matters: harder crystals resist everyday scratches far better, while softer ones mark sooner but can often be polished back. Steel bezels take the first knocks on any watch, so look for dents, chips, and rubbing along the edge in the photos.

Steel cases differ in weight and in how they carry scratches and polishing marks, so compare the case photos with the condition grade below. At 43 mm, judge the case against your own wrist, because the same size can look quite different depending on lug length. A case thickness of 14.8 mm decides whether the watch slides under a shirt cuff or stands proud of it. 21 mm between the lugs is the measurement to have at hand if you plan to fit a different strap.

Leather straps and bracelets age in different ways, so check the photos of the strap for stretch, creasing or scratches.

The strap or bracelet comes in "Black", and next to the dial colour, it does as much as any other detail to set the character of the watch. The closure falls under "Buckle", and the closure is one of the first parts of a bracelet to show wear, so it deserves a close look in the photos.

Steel clasps should be checked against the bracelet in the photos for matching finish and wear. As part of the Pilot line, it can be compared directly with other examples from the same family.

The watch is filed under "Men's watch/Unisex", which indicates intended size and styling more than who may wear it.

Movement and technical details

Anything we could not confirm is left out rather than guessed.

Automatic movements ask for different care, from service intervals to winding or battery habits, so it helps to know which kind you are buying.

46 h of power reserve means the watch keeps running for that long once fully wound, which is worth knowing if you rotate between several watches.

A frequency of 28800 A/h defines how finely the movement divides each second, and with it how smoothly the seconds hand moves. The movement uses 33 jewels, synthetic rubies that act as low-friction bearings at the pivots and give a rough idea of how complicated the movement is.

Water resistance is stated as "10 ATM"; on a pre-owned watch, the gaskets age, so we advise a pressure test before it goes near water.

The watch dates from 2023, which helps you compare it with other examples built in the same period.

Condition and set

Any wear is visible in the photos, and we describe it as plainly as we can.

Used (Very good) is the grade we assign after inspection, based on the case, dial, crystal, and bracelet rather than on how the watch runs. The set is described as "Original box, original papers", and a complete set of box and papers helps document provenance and usually counts in the resale value. The reference number IW378001 separates this version from other variants of the model, so it is worth matching it against the photos before you buy.

Authenticity and service

Every watch sold by WATCHOYSTER is inspected and authenticated by our certified watchmaker and verified against The Watch Register before it reaches you. Interested in the IWC Pilot IW378001? Write to us on WhatsApp, and we will send additional photos and delivery details.