Tag Archives: AP Caliber 2121

tomvox1’s Watches for Sale — Vintage 1970s Audemars Piguet Royal Oak JUMBO 5402ST B-Series

SOLD

Up for sale, a watch that needs no introduction — Gerald Genta’s all time design classic, the original, legendary all-steel Audemars Piguet Royal Oak Jumbo reference 5402ST. This coveted and rare Royal Oak is from the second B-series produced in the mid-1970s and is in Excellent vintage condition overall with a stunning original deep gray Petite Tapisserie dial in absolute Near Mint condition. Featuring all its original case parts as far as I can tell, this Royal Oak 5402 still has its correct second generation signed bracelet clasp, correct unsigned octagonal crown, correct original date wheel and original matching Tritium slim paddle hands. The amazing integrated bracelet has minimal stretch for its age and will fit up to a 7 1/4” wrist comfortably.

This ultimate cult Royal Oak features AP’s revolutionary JLC-derived caliber 2121 ultra-thin automatic-winding calendar movement, a technical marvel with recessed rotor that enables the brilliantly engineered case to remain so thin. This magical caliber was also used in the original Patek Phillipe Nautilus 3700 and the Vacheron Contsantin 222 among others. I had wanted to send this watch to AP for a service but their new policy is to make any 5402 “like new” cosmetically, replacing crown, hands, etc and thereby destroying the vintage originality for us true collectors. So you know going forward unmolested examples like this one are going to become harder and harder to come by. In any event, instead I just had this Royal Oak fully overhauled by my watchmaker, including the installation of a new mainspring, while allowing no other cosmetic work. 

While not a safe queen, the case of this Royal Oak still has sharp chamfers & bevels that appear to me to be unpolished, while the bezel has either softened from years of cuff wear or has been lightly polished at some point in the past (never by me). The watch shows minor wear commensurate with semi-regular use over its nearly 50 years of life, though it’s still in Excellent vintage condition. To my mind, that means you don’t have to worry about babying it and can just strap it on and go when the mood strikes, which is what I’ve done for the eight or so years that I’ve owned this beauty.

The star of the show is the magnificent original Petite Tapesserie dial, which has not gone tropical as so many have and retains its original deep metallic charcoal gray color, with notes of blue in the sun. There are a few very subtle speckles showing in places from the brass beneath under magnification, an effect more noticeable by far in these macro photos than to the naked eye. The original slim hands match the dial perfectly and the appearance is absolutely stunning, looking just about like it came out of the factory yesterday save the pleasingly warm lume patina and the slight “sparkle” effect.

On the wrist, this classic ultra-slim Royal Oak is simply magic. You’ll understand all the hype once you’ve put one on and they don’t come up for sale in this sort of condition too often. Think about making this piece of watchmaking history yours today!

SOLD