We offers links to sites about jewelry, diamond, body jewelry, vintage jewelry, costume jewelry, gemstones, emerald, rings, piercing, charms, watches.

Site of the Month for September 2011

September 23rd, 2011 11:54 pm

Jewelry Directory
Site of the Month for September 2011 talks of Jewelry Directory. All 4 Jewelry contains full listings of all jewelry directory includes body jewelry, fine art, beads, gemstones, designers, international jeweler, bracelets, wholesale, precious metals, engagement rings and more.

What is the difference between a chronograph and a chronometer?

July 12th, 2011 4:45 am

A chronograph is a watch with hands that display hours, minutes and seconds, together with a mechanism for measuring elapsed time by means of a central chronograph hand, which records seconds, and 30-minute and 12-hour totalisers. A chronometer is a watch that has obtained an official rate certificate from the COSC (Official Swiss Chronometer Testing Institute) after having passed precision tests in different positions and at different temperatures, as well as water-resistance tests. These tests are conducted over a 15-day period.