Description

Lieu de la prise de vue	51° 28′ 40,8″ N, 7° 33′ 18″ E	Voir cet endroit et d’autres images sur : OpenStreetMap	51.478000; 7.555000

Image de valeur Cette image a été promue selon les critères des images de valeur, et est considérée comme l’image de plus grande valeur sur Commons dans le domaine : Pocket watch movements. La proposition est consultable sur Commons:Valued image candidates/Longines 4 Grand Prix pocket watch - clockwork visible - enhanced resolution DSF3402-PSMS.jpg.

Image de qualité Cette image a été promue au rang d'image de qualité d'après les critères du Guide des images. العربية ∙ جازايرية ∙ беларуская ∙ беларуская (тарашкевіца) ∙ български ∙ বাংলা ∙ català ∙ čeština ∙ Cymraeg ∙ Deutsch ∙ Schweizer Hochdeutsch ∙ Zazaki ∙ Ελληνικά ∙ English ∙ Esperanto ∙ español ∙ eesti ∙ euskara ∙ فارسی ∙ suomi ∙ français ∙ galego ∙ עברית ∙ हिन्दी ∙ hrvatski ∙ magyar ∙ հայերեն ∙ Bahasa Indonesia ∙ italiano ∙ 日本語 ∙ Jawa ∙ ქართული ∙ 한국어 ∙ kurdî ∙ Lëtzebuergesch ∙ lietuvių ∙ македонски ∙ മലയാളം ∙ मराठी ∙ Bahasa Melayu ∙ Nederlands ∙ Norfuk / Pitkern ∙ polski ∙ português ∙ português do Brasil ∙ rumantsch ∙ română ∙ русский ∙ sicilianu ∙ slovenčina ∙ slovenščina ∙ shqip ∙ српски / srpski ∙ svenska ∙ தமிழ் ∙ తెలుగు ∙ ไทย ∙ Tagalog ∙ Türkçe ∙ toki pona ∙ українська ∙ vèneto ∙ Tiếng Việt ∙ 中文 ∙ 中文（简体） ∙ 中文（繁體） ∙ +/−

Additional Information

en: Longines pocket watch, model 4 Grand Prix

• Manual winding
• Silver casing (800/1000)
• Rear view, clockwork exposed, visible wear marks
• Case diameter (width): 47 mm; height including crown: 61 mm.
• Manufactured in Swítzerland
• According to the serial number (S/N) 1999795 this pocket watch was produced in approx. mid 1907.^[1] Production commences with S/N 1,950,000 (approx.) in 1907 and subsequently with 2,100,000 (approx.) in 1908.
• Presumably ersatz hands (both hour and minute hands).
• Very surprising fact: the caliber (i.e. the actual inner workings of a watch) is a true mirror image of similar Longines 4 Grand Prix pocket watches (yet correct writing direction in both cases).
• This image was taken at an acquainted collector's residence in Germany. It is in dire need of a thorough re-oiling.

See below for technical details concerning the "making of" this image.

de: Longines Taschenuhr, Modell 4 Grand Prix

• Handaufzug
• Silbergehäuse (800/1000)
• Rückseitenansicht mit Uhrwerk und sichtbaren Gebrauchsspuren
• Gehäusemaße: Durchmesser/Breite: 47 mm. Höhe mit Krone: 61 mm
• Hergestellt in der Schweiz ab ca. 1900
• Die auf dieser Taschenuhr eingeprägte Seriennummer (S/N) 1999795 weist auf ein Herstellungsdatum circa Mitte 1907 hin.^[1] Nachweis: Die Seriennummern für 1907 beginnen ab circa 1.950.000 und die für 1908 ab circa 2.100.000.
• Vermutlich Ersatzzeiger
• Erstaunliche Entdeckung: Das Kaliber ist exakt spiegelbildlich ausgeführt zu weiteren Longines Modell 4 Grand Prix Taschenuhren (dennoch stimmt in beiden Fällen die Schreibrichtung).
• Diese Aufnahme erfolgte bei einem befreundeten Uhrensammler in Deutschland. Reinigung des Uhrwerks erforderlich!

Technische Daten zum Bild: siehe nachfolgende Beschreibung im englischer Sprache.

Technical Details / Making of this Image

• Preamble: This image is not a focus stack, but is instead composed of 4 images taken at identical focus position by the proprietary Sony Alpha 7RIII PixelShift function.
• Sony lens FE 90mm F2.8 Macro G OSS, magnification ratio 1:3.2
• Shutter speed 1/40s, aperture 11, 16-bit RAW (.ARW), bias(=exp.comp.) -0.7, WB=7000K
• [1.] Sony Alpha 7RIII PixelShift function + selftimer: 4 RAW images shifted by 1 pixel (initial pos., up, right, down).
• [2.] Sony ImageViewer: processed these 4 pixel-shifted RAW images into one TIFF/16 bit file.
• [3.] Photoshop: Photoshop: (a) converted to smartfilter, applied camera RAW filter (b) applied Preset 002 (Presence+Sharp+NoiseRed) (c) expos.+1.00 (d) square crop (e) removed remaining dust and sensor specks (f) exported as JPG/max quality level.
• Result: improved colour rendering and slightly enhanced resolution due to above described quadruple imaging (via Sony Pixelshift function).

References

CAVEAT: As I am not yet fully informed about the general use of citations from non-jounalist and non-academic sources despite having read information pages such as Wikipedia:Reliable sources#Vendor and e-commerce sources I have intentionally modified the link to the relevant vendor source. This modification will be removed as soon as I have accurate information about which legal circumstances render such vendor links as irrevocably eligible.

1. ↑ ^{a b} millenarywatches.com. Longines serial numbers - production years. Retrieved on 2023-04-06.

Wiki Links

Wikipedia en: Pocket watch, Longines

Wikipedia de: Taschenuhr, Longines

Wikipedia fr: Montre gousset, Longines

Wikipedia en: Pixel shift

Weblinks

This site displays a varying selection of Longines pocket watches.

Commons: Quality Image categorization

Quality image / Subject / Objects / Household Items   >   When on that page either scroll directly to image or find by file name after clicking on Edit button.

Commons: Featured Picture categorization

Featured pictures / Objects # Horology   <   When on that page either scroll directly to image or find by file name after clicking on Edit button.

Wikipedia:Valued Image categorization

Most valued image for scope: Category:Pocket watch movements

Categories / Scope / Topic

Please observe that the following pages require a browser search to find the stated text on a page (or on one of its successors), not a Wiki commons search.

• Context: List of Valued images promoted 2019-08   >   When page appears, browser search for entry   "Longines 4 Grand Prix pocket watch - clockwork visible - enhanced "; if not found, also consider following pages
• Context: Commons:Valued images by scope   >   When page appears, browser search for entry   "Longines pocket watch, model 4 Grand Prix".
• Context: Commons:Valued images by topic / Objects / Other   >   When page appears, browser search for entry   "Longines pocket watch, model 4 Grand Prix".
• Context: Commons:Promoted valued image candidates   >   Alphabetical list of all ~35,000 promoted valued image candidates.

Ephemeral Glory

Ephemeral Glory 01: From Wed., 2019-08-14, 05:30, till Thu., 2019-08-26, 05:30 this image wass one of 4 objects continually displayed on Wiki commons' Featured pictures entry page.
Ephemeral Glory 02: POTD on Wed., 2019-08-29: this image was featured as "Image du jour / Picture of the Day" on the main page of the French Wikipedia (scroll to Image labellisée du jour).
  To the unknown promotor: a hearty Thank You!
Ephemeral Glory 03: POTD on Sat., 2020-05-09: this image was featured as POTD / Picture of the Day on the main page of the Ukrainian Wikipedia (scroll to Вибране зображення Вікісховища).
  To the unknown promotor: a hearty Thank You!
  As to now the following wiki code for the Ukrainian link   "{{w|uk:wikipedia:Шаблон%3APotd/2020-05#9|"POTD / Picture of the Day 2020-05-09"}}"   stubbornly refuses to function. I'll perseveringly try to remedy this sometime.
  I Thus enclose the original weblink   "https://uk.wikipedia.org/wiki/%D0%A8%D0%B0%D0%B1%D0%BB%D0%BE%D0%BD:Potd/2020-05#9". Please copy directly into the browser's URL area.

Conditions d’utilisation

Moi, en tant que détenteur des droits d’auteur sur cette œuvre, je la publie sous la licence suivante :

Ce fichier est sous la licence Creative Commons Attribution – Partage dans les Mêmes Conditions 4.0 International.

Vous êtes libre :

• de partager – de copier, distribuer et transmettre cette œuvre
• d’adapter – de modifier cette œuvre

Sous les conditions suivantes :

• paternité – Vous devez donner les informations appropriées concernant l'auteur, fournir un lien vers la licence et indiquer si des modifications ont été faites. Vous pouvez faire cela par tout moyen raisonnable, mais en aucune façon suggérant que l’auteur vous soutient ou approuve l’utilisation que vous en faites.
• partage à l’identique – Si vous modifiez, transformez, ou vous basez sur cette œuvre, vous devez distribuer votre contribution sous la même licence ou une licence compatible avec celle de l’original.

https://creativecommons.org/licenses/by-sa/4.0CC BY-SA 4.0 Creative Commons Attribution-Share Alike 4.0 truetrue