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2825 Sand Hill Rd
Menlo Park, CA, 94025

(650) 292 0612

Stephen Silver is renowned for our extraordinary ability to procure, design and handcraft the world's finest jewelry and gemstones.

The Stephen Silver Fine Jewelry Estate Collection includes some of the finest pieces from the Edwardian, Victorian, Art Deco, Art Nouveau, and Retro eras. Signed and period pieces are the company's specialty; many of which are from prestigious jewelry houses such as Cartier, Van Cleef & Arpels, Bulgari, Tiffany & Co., and Harry Winston.

The Stephen Silver Fine Jewelry Signature Collection exemplifies modern day luxury combined with old world elegance to produce true works of art. Exquisitely handcrafted in platinum and 18-karat gold, using only the very finest diamonds and colored gemstones, our Signature Collection is exceptional in quality and extraordinary in style.

Here's the Scoop on Why We Have a Leap Year

Watches

Here's the Scoop on Why We Have a Leap Year

Annena Sorenson

Today we celebrate Leap Year, the special time when February gets an extra day. The concept behind Leap Year has to do with keeping consistent time.

(photo courtesy: timeanddate.com)

Graphic courtesy: timeanddate.com

It takes the Earth approximately 365.242189 days – or 365 days, 5 hours, 48 minutes, and 45 seconds – to circle once around the Sun. But the Gregorian calendar year consists of only 365 days, so if we didn't add a leap day on February 29 nearly every four years, we would lose almost six hours off our calendar every year. After only 25 years, our calendar would be off by around 6 days.

By adding a day once every four years to our Gregorian calendar, we keep our measured time in alignment with the Earth’s revolutions around the sun. This extra day will be added every four years to our calendar until the year 2100—when we will need to skip the leap year to get the timing in sync again.

IWC Portugieser Annual Calendar SIHH 2015 2

With all of this in mind, we can’t think of a better time to indulge in a calendar watch. There are annual calendars and perpetual calendars on the market and both are nice devices at different price points.

Essentially the annual calendar watch tracks the information of each month on the wrist, including offering day, date and month – taking into account months that are 30 and 31 days in length. However, this type of watch requires a resetting of the date every year at the end of February (which can be 28 or 29 days, depending on if it’s a leap year).

Vaucher-Movement-Module-Perpetual-Calendar-VMF5000-01

The annual calendar’s more exclusive and expensive sibling is the perpetual calendar. In addition to tracking all of the info the annual tracks, the perpetual also counts a few other dates, including leap year. With a perpetual calendar, the watch mechanism changes the date no matter how many days are in a month, taking into account leap years. Unlike annual calendars that need an annual adjustment, perpetual calendar watches will not need an adjustment until the year 2100 when, as mentioned we will skip a designated leap year.