
I recently made a very big decision in my watch life and put a deposit on a 5140G, my all time favorite Perpetual Calender (well, you can't get a new 3940 anymore...). I have never owned a Patek Phillipe, but next week I will be going home with one. I was quite surprised, perhaps somewhat dissapoint

The Patek Philippe Reference 3940 is a perpetual calendar wristwatch that was introduced in 1985, succeeding the Reference 3450. It is notable for its relatively slim profile and the integration of a perpetual calendar complication in a refined case. This reference became a cornerstone of Patek Philippe's complicated watch offerings for nearly two decades, establishing a design language for subsequent perpetual calendar models. It represents a significant period in the brand's modern history of complicated timepieces.
The watch features a 36mm case, typically crafted from yellow gold, rose gold, white gold, or platinum. It houses the self-winding Caliber 240 Q movement, which is known for its micro-rotor construction, contributing to the movement's thinness and allowing for a slimmer case profile. The movement provides a power reserve of approximately 48 hours. The dial is protected by a sapphire crystal, often accompanied by an interchangeable solid case back and a sapphire display back.
Reference 3940 is highly regarded by collectors for its classic proportions and the enduring appeal of its perpetual calendar display, which includes day, date, month, leap year cycle, and moon phases. It was produced in several series, with subtle variations in dial layout and typography, making early series examples particularly sought after. The reference is considered a benchmark for perpetual calendar watches and remains a significant piece for those appreciating traditional horological complications.
more understated, yes, but also more modern. While the J plays the retro card. Just my point of view. Best, Nicolas
J is more dressy and yellow go seems to be sometimes fashionable, sometimes "out" and considered old fashioned. White gold, steel and platinum are the safest choises and with white metal you can always play with the strap. Ask the seller to order you two bespoke straps with a more exciting colour like blue or even burgundy red. Those go well with the G. Best, Kari
I think the yellow looks great, and you can\'t go wrong with either. In saying that, you only have two watches. The white gold can be worn in more situations in my opinion, and as you\'re other watch is an IWC Mark, you\'re probably more of a white metal guy. I think you an I are probably a bit similar in terms of taste. Go the white gold, it\'s probably more you! I could go on and on about this. Just think about what you wear on a daily basis, you want to be able to enjoy this watch as much as
A perpetual calendar needs magnitude, grace and the big stage. White gold is o.k ... but nothing else! Watches were, are and will always be made in numbers in yellow gold as yellow gold is popular in the world. Tell us your choice. Best Moritz
Forget everything. Just ask yourself "which one speaks to me?". Since you have taken the plunge to ask others (welcome!) you may be a little self-conscious (in a good way). If so, white gold. If a little more showy, yellow. If you are stealth showy, then platinum!
Best wishes Alkiro
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