Accuracy of my Spitfire Chrono

Gentlemen,

this is to share the long-term accuracy test I did with the Spitfire Chrono which I purchased in December 2010 ( here's a lume shot)

On May 01st I have adjusted the watch to "0", being curious what would happen during a one-month period. I did not wear the watch steadily, weekdays in the evenings and at night, on weekends from Friday evening to Monday morning permanently. Various activities, the watch, when not worn, rested in all possible positions and I did not treat "her" very careful I must admit. One of the reasons I bought an IWC was reliability, apart from the fact that they are locally made of course...
I did not check accuracy in-between. On May 31st, the Spitfire Chrono was
42 seconds fast, which is an average of +1,35 seconds per day. Per day! We are talking about micro-pieces, millimetres, tiny and very tiny parts, craftsmanship and a very long period compared to what it needs to move the hands every second. I expected something like that but still am very very proud of this watch and a bit surprised as well, knowing the movement is IWC configured but not IWC in-house. Excellent precision.
Thanks for reading and have a nice day everyone.

Thank you for your report

well, talk about engineering precision :)

I don't have the mechanical/technical appreciation of an engineer but this is certainly nice to know - and I've penciled it down to try out a similar test over week-increments at a future date.

By nature I am very fuss (read: paranoid) about being highly-efficient and meeting datelines, translating to being "early" for all things. Collecting over the years, starting purely on the aesthetic qualities of fine timepieces, then lead me to the possibility and wonderful discovery of reliance and trust (unnerving though at first) of a mechanical timepiece. To admire and be intoxicated with an object is one thing, to be able to trust it in its entirety is quite another - aren't all beautiful relationships :) ?

This process has admittedly been cathartic for me - a purge of anxiety through "outsourced reliability". It provided and continues to provide to me no small measure of relief and wondrous self-discovery :)

Tom, slice it and dice it any way - your findings show remarkable accuracy here!

Excellent post, nice to read and made even better by your appreciation of the mechanics.

Thanks for sharing.

Best regards
Mark