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2. Automatic quartz - Wikipedia

   en.wikipedia.org/wiki/Automatic_quartz

   204.901 (small 8.75 lignes used primarily in women's watches) 204.911 (replacement for the 204.901 upgrading from a capacitor to a rechargeable battery) 205.111 (discontinued and replaced by the 205.911 which upgraded from a capacitor to a rechargeable battery) 205.711 (15 jeweled movement used only by Swatch Watch for a variety of its fashion ...

3. Automatic watch - Wikipedia

   en.wikipedia.org/wiki/Automatic_watch

   The next development for automatic watches came in 1948 from Eterna Watch. To wind a watch effectively, one of the chief requirements of a rotor is heft. Until this point, the best bearing used in any watch was a jewel bearing, which perfectly suits the small gears of a watch. A rotor, on the other hand, requires a different solution.

4. Watch - Wikipedia

   en.wikipedia.org/wiki/Watch

   This type of watch winds itself without requiring any special action by the wearer. It uses an eccentric weight, called a winding rotor, which rotates with the movement of the wearer's wrist. The back-and-forth motion of the winding rotor couples to a ratchet to wind the mainspring automatically. Self-winding watches usually can also be wound ...

5. Mechanical watch - Wikipedia

   en.wikipedia.org/wiki/Mechanical_watch

   The hand-winding movement of a Russian watch. A mechanical watch is a watch that uses a clockwork mechanism to measure the passage of time, as opposed to quartz watches which function using the vibration modes of a piezoelectric quartz tuning fork, or radio watches, which are quartz watches synchronized to an atomic clock via radio waves.

6. Eco-Drive - Wikipedia

   en.wikipedia.org/wiki/Eco-Drive

   Later specialized tool watch designs were introduced like the Promaster Eco-Drive Professional Diver 1000M Titanium BN7020-09E in 2017. This is a very large watch, the titanium watch case has a diameter of 52.2 mm and thickness of 22 mm and features a helium release valve, designed for mixed gas saturation diving at great depths. [6] [7] [8]

7. 11 must-see astronomy events in 2025 - AOL

   www.aol.com/11-must-see-astronomy-events...

   The new year will be a busy one in the night sky with celestial sights of all types for everyone to enjoy, many of which can be viewed without needing a telescope or traveling hundreds of miles to ...