ZENITH G.F.J. Calibre 135 Automatic 39.15mm Watch Halo revealing its intricate mechanisms through

revealing its intricate mechanisms through the clear sapphire crystal

25 mm model features a blue sun-brushed dial

5" adjustable

offering a glimpse into the watch's intricate inner workings

rich brown leather strap

ZENITH G.F.J. Calibre 135 Automatic 39.15mm Watch Halo revealing its intricate mechanisms throughFollowing the award winning revival of the G. F. J., ZENITH unveils a new chapter in this collection dedicated to pure chronometry. Named after the initials of founder Georges Favre Jacot, the G. F. J. is not a commemorative gesture, but a statement of intent: a return to the very foundations of precision watchmaking. First introduced with the rebirth of the legendary Calibre 135 and honoured with the Chronometry Prize at the Grand Prix dHorlogerie de