A

Audemars Piguet 3120 Swiss automatic (self-winding), 26 mm/4.25 mm, 40 jewels, 21,600 vph, 60-hour power reserve, 22k gold rotor.

B

Breitling B01 Swiss automatic (self-winding), 30 mm/7.2mm, 47 jewels column-wheel chronograph, 28,800 vph (4 Hz), hours, minutes, small seconds, date.

E

ETA 2892-2 Swiss automatic (self-winding) Nickel Plated 11.5 ligne, Ht. 3.6 mm, 21 jewels, Incabloc shock protection, sweep seconds, date at 3 o'clock. Hand sizes 90/150/26, 28,800 BPH, lift angle of balance 51.

ETA 2894-2 Swiss automatic (self-winding) since 1996 automatic modular construction with ETA 2892 base movement and chronograph plate, 28,800 bph, 28 mm diameter, 6.1 mm height, 37 jewels, 47 h power-reserve, lever/cam design very common, often used in mid-priced models with a Tricompax (3,6,9) helper-dial outlay, due to the modular construction, crown and pushers are not on the same line Examples of watches that use this movement: Omega automatic Speedmasters with helper dials at 3,6 and 9. Chopard Mille Miglia chrono, Ulysse Nardin Marine Chronograph, Hublot Navy, Girard Perregaux "Pour Ferrari"

L

Lemania 5100 Swiss automatic (self-winding), chronograph, 28,800 vph (4Hz)

M

Miyota 8215 Japanese automatic (self-winding), 21 jewels, 26 mm diameter and the thickness 5.67 mm, frequency 21,600 vph (3Hz). (References: Miyota 8215 PDC Specs)

O

Omega 321 Swiss, c.321 is based on a design development project titled "27 CHRO C12" (27 mm diameter, chronograph, with extra 12-hour register) took place in the 1940's by Albert Piguet and Jaques Reymond as a joint developement project between Omega and Lemania. Launched in 1942, the 27 CHRO C12 later became known as the Lemania 2310, or Omega c.321).

Omega 8500 Swiss automatic (self-winding), 29 mm/5.5 mm, 39 jewels, 25,200 vph, 60-hour power reserve. Hours, minutes, center seconds, date, chronometer, modification (Omega 8501) - 2007.

P

Patek Philippe27 70 Q Swiss One of Patek Philippe's most famous movements. The caliber is manual winding (hand-wound) with 24 jewels, power reserve of approximately 55 hours, beating at 18,000 beats per hour, perpetual calendar and column wheel chronograph construction.

R

Rolex 3135 Swiss automatic (self-winding), 31 jewel COSC certified, in-house movement that's been a workhorse for Rolex for many years. The 3135 may not be the prettiest movement you'll ever see, but it does the job it was designed to do exceedingly well. Powers the Submariner, Expolorer, GMT, GMT II and Yachtmaster. Has an impressive 50 hour power reserve. It is well known for reliability.

S

Sellita SW200 Swiss automatic (self-winding), 26 jewel, 28,800 vph (4Hz), often referred to as an ETA clone.

T

TechnoTime 738.00 Swiss automatic (self-winding) 28,800 vph (4Hz), two barrels, 120-hour power reserve, instantaneous date, hour, minute, second, stop second, Côtes de Genève on the bridges and on the rotor, perlage on the main plate, rhodium plated. Available in black also, plus COSC is optional.

U

Unitas 6498-1 originally a pocket watch movement, but now it is being sold as a wristwatch movement. It is 16.5 ligne, with a 17 jewels and incablock shock protection. The lfit angle of the balance is 44. ETA owns this movement and now stamps it "ETA".

V

Valjoux 7750 Swiss automatic (self-winding), Introduced in 1974--five years after the famed Zenith El Primero automatic--the movement has been supplied in both 21,600 and 28,800 beat versions. It uses an automatic-winding module attached to the top of the movement, winding in one direction by means of a single double-click wheel. Initially using 17 jewels, current versions run in 25. The 7750 is 13.25 ligne (30 millimeter) design, 7.9 millimeters thick. (References: Valjoux 7750 at TimeZone, Valjoux 7750 at Chronomaddox, Valjoux 7750 ETA Site)

Z

Zenith El Primero Swiss automatic, 36,000 vph (5Hz). This high rate allows a precision of 1/10th of a second. Most automatics run at 4Hz, or 28,800 vibrations per hour, the El Primero, though, runs at a much higher 5Hz or 36,000 vibrations per hour. Rolex previously used this movement to power their Daytona chronograph, however, they ran it at 28,800 vph to increase reliability.

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