Jaeger-LeCoultre REVERSO LADY JOIELLERIE ORO BIANCO

My First Grail Watch: Robert Michelsen Of Michelsen Watchmakers
Welcome back to an original watches-dealer feature, "My First Grail Watch." In this series, we ask prominent people in the watch industry about the first timepiece that they lusted after. Today, we're speaking with Robert Michelsen, a fourth-generation watchmaker who, along with instructing students, oversees production for Icelandic brand Michelsen. Read on to learn what grail has eluded him, even to this day.watches-dealer (ABTW): Who are you, and what is your relationship to the watch industry?Robert Michelsen: My name is Robert Michelsen, and I hail from Reykjav¨ªk, Iceland. Watchmaking is in my blood: I¡®m the 4th generation of watchmakers in my family, and the family company, Michelsen Watchmakers, is the oldest watch company in Iceland, founded in 1909 by my great-grandfather.I live in Switzerland, where I¡®m an Instructor at K&H Watchmaking Competence Centre which is a small & independent watchmaking school in the heart of the watchmaking industry, Le Locle. Besides teachi

Possibly, Maybe, Hopefully, Have Something Brewing
I am fairly new to the Longines brand, but after doing some research I fell in love with its rich history and am now hooked.I was recently at my local AD and tried on this guy (GrandeVitesse):According to the specs, it has a L667 movement. I thought I read somewhere that the L667 is a modified version of the Valijoux 7750. I asked the AD what modifications Longines made, but he wasn't sure. Could someone educate a newbie please? Does Longines actually do any in-house work on the L667? Also, the AD is supposed to call me sometime this week with a deal. He had originally mentinoned that Longines had a standard 18% discount. Does anyone know if this is accurate? Does Longines have a standard max discount? Thanks so much!

Horology 101 - mainsprings
The mainspring of a watch retains the energy it receives from winding by coiling tightly around the center arbor. It is always trying to unwind to relieve the tension created by winding. As it unwinds, it transfers it's energy to the gears in the watch's movement via the meshed teeth on the outside edge of the barrel drum. Regulating the release of this energy in a consistent manner is how your watch keeps accurate time.1) barrel drum2) mainspring3) barrel arbor4) barrel coverFrom a fully wound state a watch with a common 40 hour reserve spring requires about 5 turns to completely unwind, so the barrel rotates once every 8 hours. The maximum number of rotations to completely unwind a typical mainspring should be no more than 8 - 10 turns. The length of the mainspring is determined by factors like the radius of the arbor, the inner radius of the barrel, and the thickness of the metal used to fashion the spring. It usually occupies 50% of the space inside the barrel. A larger barrel wil

Help with identification of watch
Hello everyone,My father recently passed down a watch to me that he received as a wedding gift. I have had some difficulty identifying the model of the Omega watch. I also would like to restore/service this watch as it has never been serviced before. One of the spring bars is missing and I have had issues changing the date wheel as well.I would appreciate it if anyone can assist me in identifying this watch and was also wondering if it would be possible to restore a watch of is age. I apologize ahead of time for the quality of the photos. Thanks.

PAM 312 on NATO
Anyone have any pics of 312 or similar on NATO strap. I was looking to possibly get a 2 piece NATO grey/black stripes (Bond) for my 312 for summer time use with the OEM rubber. Thanks in advance!