The pre-sale estimate on this Corum 163-150-20-B100-FM30R Men's watch

The pre-sale estimate on this Corum 163-150-20-B100-FM30R Men's watch is $6,300-$9,000.To see more of Eric’s posts, click here. Eric Wind in Bonhams, Heuer, Vintage Sunday, November 7, 2010 at 9:33PM Editor's Note: Over the coming weeks, each of our writers will identify the watch they think is most interesting from the upcoming Haslinger collection sale.Today, in our fist installement, read why contributor Jason Heaton has a thing for this big ole calculator chronograph from Heuer.If you regularly read Hodinkee, you’ll know that all of us here are suckers for timepieces from the golden age of tool watches.

This replica Breitling A7135 Ladie's watch belonged to a man named Major Ross F.Cole, who would eventually become the first Group Commander of the 22nd Operations Group.This group was an elite unit of 44 fighter and bomber pilots that was formed in response to England's declaration of war on Germany.The 22nd Operations Goup flew both B-18s and B-25's and were among the very first called to respond after the Pearl Harbor attacks.Despite base being in Langley, VA, the 22nd Operations Group was on its way to the South Pacific within 16 hours of the attack.

In the 1960s and ‘70s, before computers became ubiquitous, people still had to rely on their wits and what they wore on their wrists to make decisions.Heuer, of course, was one of those companies timepieces specific to adventurous Corum 163-150-20-B100-FB30R Men's watch endeavors like flying, diving, sailing and auto racing.So when I was asked to pick a favorite piece from the upcoming Bonham’s auction of Arno Haslinger’s collection, with over 80 legendary tool watches from which to choose, it seemed like an easy task.But I kept coming back to a model with a decidedly unadventurous sounding name: Lot 47, a 1972 Calculator.