Ref. 3725 Ingenieur Chrono

Hi Forumners,

Looking at the Ingenieur Chrono exposed with the naked eye and even with my watchmaker loupe is a pure delight as I can sense attention to detail throughout the complete timepiece.

The nickeled train bridges of the movement calibre C79350 are decorated with perlage and the parts, particularly the flat screws, glisten from having been highly polished.

The chrono pushers are cleverly integrated with the case while the case itself is masterfully engineered and produced without the slightest visual flaws. The special flat saphire crystal protrudes just a trifle above the top bezel leaving it well protected from angular impacts.

Overall, the craftsmanship that went into the design and production of this reference timepiece shown in the photo here compliments the skills of the IWC company and its partnership of this series with Mercedes-AMG.

Though I am both fortunate and accustomed to seeing IWC timepieces at close range I thought I would share my exciting experience of enjoying this special model.

Regards,
Jack Freedman

Thanks for this image and passionated view!

Thank you Jack for the look inside.

Ref. 3725 Ingenieur Chrono

It is of special value that a watch maker gives his opinion on an IWC.We, the non expert collectors , often don't see how a movement is superior to another,because of technical details.
Thanks Jack,
Adrian.

As always interesting to read! Thanks Jack. (nt)

As always interesting to read! Thanks Jack. (nt)

Jack,

Thanks for the scans and your expert comments. It was nice to talk with you on the phone recently and I appreciate your expetise and comments.

Bill

Jack, do you have a reaction to lack of a date or

day-date? Is this "lack" dictated by the type of movement? My preference is for a date or day-date, but I am uninformed as to what decides the presence of absence of that feature.

Re: lack of calendar

Hi,

The movement is the same general one used by IWC in its entire chronograph collection which is based on the Val. 7750 calibre.

As with most, if not all, mechanical day/date movements, it is possible to simply cover the calendar assembly with a solid dial having no windows for either day or date thereby requiring no special alterations or any other calibre movement. That is what IWC did with this ref. 3725 timepiece.

However, the basic movement for the Portugieser model 3714, which is the same as mentioned before also without a calendar, has been modified by IWC due to the rearrangement of the hands. There the minute counter appears on the top sub dial while the small seconds hand is on the bottom sub dial unlike the conventional setting in most other models.

Regards,
Jack Freedman