In-Depth: A Detailed Look At Early Longines Chronographs, Including The Legendary 13ZN
PH Zhou is a student at the Massachusetts Institute of Technology, where he studies economics and computer science. He is a devoted enthusiast of vintage watches – in particular early- to mid-20th-century chronographs. When we talk about vintage chronograph movements, there are many deserving of our attention – from the relatively common Valjoux 72 that powers anything from a Rolex Daytona to a Gallet Multichron 12, to the exceedingly rare and complicated Caliber 13-130 that resides in a Patek 1518 Perpetual Calendar Chronograph. However, as much as it is a sin to claim this for the latter, neither of the two movements we just mentioned are truly "in-house," since the Caliber 13-130 is still ultimately based on a Valjoux ebauche. In fact, the number of companies that produced both watches and movements were few and far between. 1 OF 45 Longines 13ZN in steel �C notice the beautiful blued hands and sector dial. (Image via nakahiro.parfait.ne.jp)

This should be a crime!
Looks like it was spray painted.Sent from my iPhone using Tapatalk

Michael Schumacher Concept Lap Timer in the flesh!!
Got a chance to try this beauty on last night.....WOW!!

Good morning shots
We all need a coffee to start our day and our APs. ImageUploadImageUploadedByTapatalk1360248026.782472.jpgSent from my iPhone using Tapatalk. Watches are the new currency!

Audemars Piguet and YouTube
I find it sad how whenever I type in AP or Audemars Piguet into the search box all I ever get up is FAKE FAKE FAKES!Does anyone know of any good videos of AP's I could have the link to?Thank you Dino