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Results for Perpetual Calendar

1,753 articles · 3 videos found · page 44 of 59

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Exclusive · Guide
Vacheron Constantin brings back the traditionelle Twin Beat Perpetual Calendar, now with 70 days of reserve

The most clever perpetual calendar in the business just got a meaningful upgrade, and it's still only 41 mm

Wiki · Guide
Perpetual Calendar

The mechanical calendar that knows leap years automatically through 2100.

Exclusive · Guide
The WristBuzz watch wiki: 323 terms, one reference that actually answers the question

From Nivachron to Besançon, ISO 6425 to the Quartz Crisis. A working glossary built for people who read spec sheets for fun.

Dimensions · Guide
Case dimensions: Patek Philippe Perpetual Calendar 3940 (discontinued 2007) Patek Philippe

36 mm × 8.9 mm, lug 19 mm, Cal. 240 Q

Introducing - Christiaan van der Klaauw Venus Zodiac and Venus Annual Calendar Monochrome
Christiaan van der Klaauw Venus Zodiac Apr 17, 2026

Introducing - Christiaan van der Klaauw Venus Zodiac and Venus Annual Calendar

Christiaan van der Klaauw is a renowned Dutch independent watch brand specialising exclusively in astronomical complications, making it the world’s only atelier dedicated solely to handcrafted timepieces inspired by celestial mechanics. Founded in 1974 by master watchmaker Christiaan van der Klaauw, who retired in 2009, the brand is now in the hands of watchmaker Pim […]

Watches & Wonders: the A. Lange & Söhne Saxonia Annual Calendar Returns with a New Case Size and Caliber Worn & Wound
A. Lange & Sohne Apr 14, 2026

Watches & Wonders: the A. Lange & Söhne Saxonia Annual Calendar Returns with a New Case Size and Caliber

A. Lange & Söhne had one of my, and many others’, favorite releases at Watches & Wonders 2025. It wasn’t a super complication and had no bells-and-whistles. Rather, it was simple and small. The 34mm 1815 three-handers in white or rose gold exemplified confident, understated luxury like no other watches at the fair. For 2026, Lange has brought back a watch that had been out of production with a new movement and in a new, smaller size, following suit from last year’s release. Unlike the 1815s, these feature one of the less common complications in the Lange catalog: the annual calendar. The Saxonia Annual Calendar was a very cool watch. It combined its eponymous complication with Lange’s signature outsized date and was powered by a since-retired “Sax-0-Mat” three-quarter-rotor automatic movement. These funky movements were featured in the Langematik watches and represented Lange’s first foray into automatic calibers. In addition to a distinctive look, they featured a hidden complication: zero-reset seconds, meaning that when the crown was pulled out, the seconds hand would jump to zero. In 2011, the Sax-O-Mats began to be replaced by central rotor calibers with up to 72 hours of power reserve, an increase from 46 hours, but the zero-reset seconds disappeared. Though comprising many different calibers, most of Lange’s currently in-production automatics have a central rotor. I am unsure when the previous generation of the Saxonia Annual Calendar went out of pro...

Audemars Piguet’s 150 Heritage is a Universal Cultural Calendar SJX Watches
Audemars Piguet s 150 Heritage Feb 3, 2026

Audemars Piguet’s 150 Heritage is a Universal Cultural Calendar

Audemars Piguet celebrated 150 years of existence in 2025, but its celebrations have continued into the new year with the 150 Heritage Pocket Watch. While many large ultra-complicated pocket watches are exercises in nostalgia, the 150 Heritage is a modern marvel of micro-mechanical engineering with never-before-seen functionality inside a surprisingly compact 50 mm case. Initial thoughts Few brands can match Audemars Piguet’s track record of producing Grand Complication pocket watches, but the 150 Heritage surprises by adapting a calibre originally intended for the wrist. A complicated pocket watch with a simple name, the 150 Heritage is built around the cal. 1150, a newly developed hand-wound movement that adapts the architecture of the ambitious cal. 1000 developed for the Code 11.59 Universelle, and as such it includes past RD-series innovations. That said, the differences between the Universelle and the 150 Heritage are quite significant, thanks to an intriguing new feature: a hinged mechanical calculator, isolated from the movement. The intricate system is housed inside the case back and allows the user to effortlessly cycle through dates across any year to be able to read a surprising number of culturally-relevant dates based on lunar, solar and lunisolar cycles.  The device feels a bit like a time machine, as the lucky owner can go into the past or look into the future and find out the exact dates of Catholic Easter, Ramadan, Equinoxes and many others, along with...

The Haim Annum, a New Annual Calendar, is the Brand’s Most Ambitious Watch Yet Worn & Wound
Seiko made GMT caliber replacing Oct 20, 2025

The Haim Annum, a New Annual Calendar, is the Brand’s Most Ambitious Watch Yet

The Chicago based brand Haim celebrates their five year anniversary this year with what is certainly their most ambitious watch to date, the Annum. When brand founder Zakir Miah showed me an early prototype of the watch months ago at a Windup Watch Fair, I was surprised and impressed that he would even think to attempt making a watch with such a niche complication. It resets the brand in some ways, and will likely force people to consider Haim in a different way.  As surprising as an annual calendar from Haim is, if you pull back far enough, there were signs that Miah wanted to move the brand into a slightly higher end and more refined direction going back a few years. The Legacy Automatic, for example, featured a custom decorated movement by an American company, Maryland Watch Works, and the whole watch was a significant step up in terms of finishing and build quality compared to prior efforts. But the real shift came with the Viajero Worldtimer released last year. This watch featured a rather clever modification of a common Seiko-made GMT caliber, replacing the hand for the second time zone with a cities ring akin to what you’d find on a classic world timer. The old-school “globe” dial was meant to recall the most famous worldtimers from the Jet Age, and while the Viajero doesn’t have nearly the watchmaking complexity of those timepieces, it was able to mimic the style of those watches to an impressive degree when you consider the price tag of $799. The Annum ar...

Introducing - The Kurono Grand Jubilee Calendar Salmon Dial Monochrome
Kurono Tokyo Oct 10, 2025

Introducing - The Kurono Grand Jubilee Calendar Salmon Dial

This year is pretty special for Kurono Tokyo, the more accessible brand created by Japanese independent watchmaker Hajime Asaoka. Indeed, 2025 marks the watchmaker’s 60th anniversary, which the brand is celebrating as its diamond jubilee, resulting in several special edition watches that pay tribute to design features created by Asaoka. Following the highly elegant 2025 […]

Introducing - The Bold New Oris Big Crown Calibre 113 with Business Calendar Monochrome
Citizen s” Sep 4, 2025

Introducing - The Bold New Oris Big Crown Calibre 113 with Business Calendar

Oris has long defined itself as a maker of mechanical watches for “today’s world citizens”, with a clear commitment to function, value, robust engineering, supported by original looks. The new Big Crown Calibre 113 extends that philosophy by combining the brand’s historic pilot’s watch design with one of its most advanced hand-wound movements. Initially introduced […]

Introducing - The Arnold & Son Perpetual Moon 41.5 Red Gold Cliff Grey Edition Monochrome
Arnold & Son Jun 27, 2025

Introducing - The Arnold & Son Perpetual Moon 41.5 Red Gold Cliff Grey Edition

Swiss watchmaker Arnold & Son is named after the 18th-century English watchmaker John Arnold, the ingenious inventor who popularised the expression ‘chronometer’ to describe his precision marine timekeepers. Before the advent of marine chronometers to determine longitude at sea, navigators relied on the position of the Sun, Moon and stars to determine their position. Astronomy, […]

First Look - The Return of Urban Jürgensen, and the New UJ-1 Tourbillon, UJ-2 Time-Only and UJ-3 Perpetual Monochrome
Urban Jürgensen Jun 5, 2025

First Look - The Return of Urban Jürgensen, and the New UJ-1 Tourbillon, UJ-2 Time-Only and UJ-3 Perpetual

A couple of days ago, we published a long, in-depth article on the history of one of the most important watchmaking dynasties, Urban Jürgensen. There were more reasons for this article than just celebrating this historic name, which was founded in 1773. This article was here to prepare the grounds for what is happening today, […]

Zenith Introduces a Chronomaster Original Triple Calendar with a Lapis Lazuli Dial Worn & Wound
Zenith Introduces May 21, 2025

Zenith Introduces a Chronomaster Original Triple Calendar with a Lapis Lazuli Dial

One of my favorite releases from Watches & Wonders (and one of the best watches Zenith has made in years, in my opinion) was the G.F.J., a study in blue and a celebration of the brand’s 160th anniversary. The G.F.J. is something of a no-expenses-spared dream watch, with a platinum case and optional bracelet that basically doubles the price (because why not?) as well as a finely finished movement and loads of history built into the watch’s story, with a focus on the brand’s historic pursuits in chronometry. When I had that watch on my wrist I wondered how the G.F.J. line might expand, and if this watch was an opening salvo in a more ambitious series of releases to come. I don’t know that we have any answers to those questions, necessarily, with the release of the Chronomaster Original Triple Calendar Lapis Lazuli today, but there’s certainly some connective tissue between Zenith’s newest novelty and the G.F.J. we saw a few months ago.  Looking at the latest Zenith Triple Calendar, it’s impossible not to notice a certain aesthetic similarity to the G.F.J. Both make prominent use of lapis lazuli, one of the most common precious stones used in watchmaking. On the G.F.J., lapis is what makes up the majority of the dial space, with the stone in the main dial nicely complementing the blue mother of pearl in the subsidiary seconds. On this new Triple Calendar, the lapis is truly the star of the show, dominating the dial and only yielding for the three subregisters i...

Introducing - The New Salmon Version of the Brellum Duobox Triple Calendar Moonphase Monochrome
Apr 18, 2025

Introducing - The New Salmon Version of the Brellum Duobox Triple Calendar Moonphase

Founded in 2016 in the Swiss Jura by Sébastien Muller, a fourth-generation watchmaker, Brellum is an independent brand known for its direct-to-consumer model and limited annual production of no more than 299 COSC-certified chronometers. The brand debuted with the Duobox collection, recognised for its classic design, accessible pricing, and limited editions, including models featuring a […]