Rolex caliber 3230 movement – specifications and photo

Rolex caliber 3230 is Swiss movement from 2020.

Functions: hours, minutes and seconds

Automatic (bi-directional winding) movement with 31 jewels

f = 28800 A/h/4 HZ

Power reserve: 70 hours

Diameter: 28.5 mm


Made of nickel-phosphorus, it is also insensitive to magnetic fields. The movement is fitted with an optimized blue Parachrom hairspring, manufactured by Rolex in an exclusive paramagnetic alloy that makes it up to 10 times more precise than a traditional hairspring in case of shocks. The blue Parachrom hairspring is equipped with a Rolex overcoil, ensuring the calibre’s regularity in any position.

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IWC caliber 79420 movement – specifications and photo

IWC caliber 79420 is Swiss movement from 201X.

Functions: day and date display, chronograph, small hacking seconds, rattrapante (split seconds hand for intermediate timing).

Automatic movement with 29 jewels

f = 28800 A/h/4 HZ

Power reserve: 44 hours

Diameter: 30.0 mm

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Patek Philippe caliber R 27 Q

Reference 3974 – The two complications in which Patek Philippe excels – the perpetual calendar and the minute repeater – come together for the first time in a wristwatch with a self-winding movement.

The dial has the traditional layout of Patek Philippe’s well loved perpetual calendars, showing the day, date, month, leap year and the 23 hours
with remarkable carity.
The only aperture in the dial is for the moon phases.

The perpetual calendar is known for its unfailing reliability as it follows the different sequences of long and short months, combining them with the different cycles of leap years, and lunations; dividing the day both into 24 hours and into 12 hours. This beautifully engineered instrument is the pride of Patek Philippe’s watchmakers.

Buried in the 467 parts of the movement is the intricacy of cams and racks that converts the time on the dial into the time you can hear. Patek Philippe’s minute repeaters strike the hours, quarters and minutes on two gongs of special acoustic steel to give a sharp, clear time. The spinning governor which regulates the tempo of the strike is totally silent.

Dial indications – Month and year at 3 o’clock, date and moon … Continue reading...

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Most Popular Watch Complications

Date Display

Probably the simplest complication, yet also the most useful, the date display is exactly what it sounds like – it tells you the date. This particular display can most often be viewed in four various ways.

The most popular of course is the Date Window which presents itself as an aperture next to the three o’clock marking on the dial.

Date Window

Generally this is in the form of two numbers that go from 0-9 allowing every possible date of the month to be viewed. In some cases, these numbers will alternate between red and black, in which case it will be referred to as a “Casino” date display.

The second most common date display is called a Big Date. This particular display provides the wearer with a significantly larger view of the date which is easier to read at a glance than the Date Window.

Big Date

On some watches, the display will be two separate windows side-by-side with the left going from 0-3 and the right displaying 0-9 like the Date Window. While this window can also be found next to the 3-o’clock marking, it can also sometimes be found at the top of the dial … Continue reading...

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