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Jewel bearing of a balance wheel, supported by a lyre-shaped spring. The Incabloc shock protection system is the trade name for a spring-loaded mounting system for the jewel bearings that support the balance wheel in a mechanical watch, to protect the wheel's delicate pivots from damage in the event of physical shock, such as if the watch is dropped.
A jewel bearing is a plain bearing in which a metal spindle turns in a jewel-lined pivot hole. The hole is typically shaped like a torus and is slightly larger than the shaft diameter. The jewels are typically made from the mineral corundum, usually either synthetic sapphire or synthetic ruby. Jewel bearings are used in precision instruments ...
ETA Mechanical movements Caliber Product Line Winding Diameter () Height () Jewels Frequency Running time () VPH Hz; 2671 [1]: Mecaline automatic 17.2 4.8 25
The basic specification of the Standard wristwatch caliber is a minimum of 17 jewels, 21,600 bph (beats per hour) escapement, a minimum 40-hour power reserve and an average rate within +/-30 seconds per day. [2] The movement is manufactured in a number of grades (from high to low) [6] in both automatic and manual-winding forms.
Langendorf Watch Company was a Swiss watchmaker known for its fine craftsmanship and great attention to detail. Around 1890, it was probably the largest producer of watches in the world.
Click the jewel icon next to someone's profile on your personal leaderboard (see second image below) and up pops a window with a smarmy red gem ready to deliver your best diss.
Nivaflex is an octavariant alloy important in watchmaking, used primarily for the mainspring. [1] The name was registered as a trademark in 1957 by Reinhard Straumann, a Swiss metallurgist.
A 4-round rotary magazine (right) along with an aftermarket 10-round box magazine (left) for the Ruger 77/44. Introduced in 1997, the Ruger 77/44 uses the same rotary magazine design with a short bolt stroke and three position safety but is chambered in .44 Magnum .