#chronometry

MOST RECENT

This post will slightly deviate from the precision Chronometer theme of this page and instead look at a beautifully crafted precision instrument.
The pictured micrometer was completely made from scratch by a student of Geneva’s renowned watchmaking school ("Ecole d'Horlogerie de Genève”). Students had to make their own micrometers as part of the demanding curriculum of becoming a watchmaker - later in their professional life, many watchmakers still relied on their self-built tools on a daily basis, as the quality was often unmatched by similar industrially produced devices - certainly, the personal sentimental value also played a role.
The workmanship of this instrument can be rightfully described as excellent - finishing includes perlage on the mainplate as well as a blued reset-spring and hands, while the precision is rated at +/- 0.005 mm. Benchmarking it against a modern Japanese digital Mitutoyo micrometer produced very reliable results.

#schoolwatch #ecoledhorlogeriedegeneve #ecoledhorlogerie #watchmakertools #montreecole #watchmakingschool #watchmaking #watchmaker #wis #klocksnack #chronometrie #chronometry #precision #accuracy #horloger #horlogerie #horologist #horology #micromechanics #micrometer #zangenmikrometer

Realized that my little IG page cracked the 1000 follower mark today.
I figured a short video would appropriately commemorate that milestone.
Let us have a look and compare various working frequencies of wristwatch-sized observatory chronometer calibers. Make sure to turn up the volume in order to hear the difference! 🔈

From left to right (low to high-beat): ⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀
▪️18,000 vph / 2.5 Hz:
Longines 10.68Z - The smallest and rarest wristwatch observatory chronometer caliber by Longines, as merely 18 pieces were prepared for the Kew Observatory.
-
▪️21,600 vph / 3 Hz:
Peseux 260 by Spiraux Réunies (SR) - That particular movement was converted by SR from 18000 to 21600 vph in order to demonstrate their superior hairspring technology and outperform their fiercest competitor back then, namely Nivarox.
-
▪️25,200 vph / 3.5 Hz:
This rare observatory version of Omega’s legendary 30mm chronometer movement was equipped with a 3.5 Hz high-beat escapement (Std. production version: 2.5 Hz / 18000 vhp) and features a „DP“ (double platine) modification, where another plate was mounted on top of the mainplate in order to make room for a larger mainspring barrel.
-
▪️36,000 vph / 5 Hz:
Longines cal. 360 - An experimental version of an already rare movement (the cal. 360 was made in ca. 250 examples) which boasts an uncommon Guillaume balance that has rectangular compensation-weights (like a marine-chronometer) on the balance rim, but also traditional timing-screws.

#longines #peseux260 #omegachronometer #omega30mm #longineschronometer #vintagechronometer #observatorychronometer #competitionchronometer #observatorycompetition #chronometercompetition #observatorytrial #chronometer #chronometre #bulletindemarche #neuchâtelobservatory #observatoire #observatory #precisiontimekeeper #precisiontimekeeping #watchmaking #watchmaker #wis #klocksnack #Hodinkee #chronometrie #chronometry #horloger #horlogerie #horologist

The IWC 3777-06 "Le Petit Prince" was limited to only 1,000 pieces






#watches #watch #wristporn #hamilton #chrono #chronometry watchesofinstagram #time #timeless #complications #timelesscomplications

Speake-Marin revisits one of its iconic Haute Horlogerie model and brings its movement know-how to redesign the dial in making it fully Openworked on the left-hand side with their Vertical Double Tourbillon Openworked. Nestled in the iconic Piccadilly case, this timepiece has the widest diameter of the collection.
#speakemarin #khronosuniquehorlogeriekl #starhillgallery #46 #mm #2 #cages #perfect #chronometry #definitely #contemporary #matte #black #gold #arab #numbers #heart #hands #rare #hallmark

Originally designed in collaboration with Pan Am Airways, the Rolex GMT Master was initially created and issued by Pan AM to their crews on long-haul flights. The key feature of the watch was that the wearer could tell different times simultaneously






#watches #watch #wristporn #hamilton #chrono #chronometry watchesofinstagram #time #timeless #complications #timelesscomplications

TAG Heuer began as Uhrenmanufaktur Heuer AG and was founded in 1860 by Edouard Heuer in St-Imier, Switzerland. The name TAG Heuer combines the initials of "Techniques d'Avant Garde" and the founder's surname.






#watches #watch #wristporn #hamilton #chrono #chronometry watchesofinstagram #time #timeless #complications #timelesscomplications

The Hamilton Watch company produced its' very first watch in 1893 in Lancaster, PA. The company was named after Andrew Hamilton, a Scottish born attorney who laid out and founded Lancaster, and was the original owner of the Lancaster site on which the factory was situated.






#watches #watch #wristporn #hamilton #chrono #chronometry watchesofinstagram #time #timeless #complications #timelesscomplications

융프라우를 끼고, 스위스에서 시계공부할때가
벌써부터 그립다.. #WOSTEP#Precision Timing#Chronometry#Watchmaking

BREITLING NAVITIMER B01 CHRONOGRAPH 43mm
品番:A022C-1NP
価格:¥1,058,400
#KAMINE #CHRONOMETRY #BREITLING #NAVITIMER #B01 #Watch
#カミネ #ブライトリング #神戸 #時計

Which control system do you prefer in an integrated chronograph mechanism : a column-wheel or a cam ? #purist #chronograph #chronographwatch #watchmakers #watch #horology #luxurywatch #precision #chronometry #vauchermanufacture #vaucherprivatelabel #mechanicalmovement

Most Popular Instagram Hashtags