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What is the size of the watch pictured, please?

...but the piece I am looking to validate is from prior to the catalogs which you posted - I would guess 1940s. Any idea where I can dig up some reference materials?

In the old forum format, the Blomman series on vintage JLC catalogs was stickied. How do I go about consulting it now? Is there a keyword to search for? thanks in advance L

Engraved much more deeply than one normally sees, especially the serial number which is normally much lighter than the other text. I would say that perhaps it was re-engraved after the original was obliterated during an aggressive case polish (grain is normally linear, not circumferential), but that

El Primero had been in development for years - Zenith's original plan had been to prepare it for its centennial in 1965. The expertise for the movement came largely - probably entirely - from Martel, Universal Geneve's long time chronograph movement supplier which was acquired by Zenith in 1960. Mov

This is the list of other brands that have cased the El Primero that we came up with in another forum. Boucheron - in white gold, with cal 400Z branded "Boucheron El Primero" on rotor Concord - ( ? - 2002) Impresario - cal. 411 (without moonphase) Dior Chiffre Rouge DuBois & Fils - Zenith cal 410 in

Luminescent hour indices but with non-luminescent hands. Yes, I know it is a luxury piece of jewelry that we are unlikely to depend on in the dark, but still - sometimes the people in the design office drag things a little too far from actual usefulness. Give me some of the candlestick hands from th

Adhesive, as in ordinary glue? Or is there something specific to be used here?