Watch-Agent Horology Database
Watches
| Brand | Family | Model | Reference(s) | Movement | Years | Tests |
|---|---|---|---|---|---|---|
| Omega | Constellation | Globemaster Co-Axial Master Chronometer The first timepiece certified as a METAS Master Chronometer. | — | Omega 8900 | — | METAS (Master Chronometer), +0/+5 s/d, 15,000 G |
| Omega | Constellation | Pie Pan Iconic vintage Constellation "Pie Pan" powered by the 500-series full-rotor automatic movement. | — | Omega 561 | — | — |
| Omega | Seamaster | Aqua Terra 150M Seamaster Aqua Terra fitted with Omega's in-house caliber 8500. | — | Omega 8500 | 2007–present | — |
| Omega | Seamaster | Automatic Bumper Vintage mid-century Seamaster utilizing a bumper/hammer automatic winding caliber. | — | Omega 354 | — | — |
| Omega | Seamaster | Diver 300M Co-Axial Early 2000s Seamaster Diver 300M equipped with the first-generation Co-Axial caliber 2500. | — | Omega 2500 | — | — |
| Omega | Seamaster | Seamaster Automatic (calibre 1120) Seamaster serviced by The Watch Guy (watchguy.co.uk, "Service Omega Seamaster Calibre 1120"). Calibre 1120 is ETA 2892-2 based; this example has an antimagnetic dust cover over a decorated rotor. Service included a new mainspring; a winding fault was traced to the dust cover rubbing the rotor. Reference number and production years not stated in the source. | — | Omega 1120 | — | — |
| Omega | Seamaster Professional 300M | Seamaster 300M Chronometer (Peter Blake) Features black wave dial, sword hands, and luminous triangle at 12 o'clock. | 2254.50.00 | Omega 1120 | 1996–2008 | COSC (ISO 3159), -4/+6 s/d, 300 m, 60 G |
| Omega | Speedmaster | Chronograph "Ed White" Original Speedmaster chronograph featuring Caliber 321, associated with astronaut Ed White. | — | Omega 321 | — | — |
| Omega | Speedmaster | Dark Side of the Moon Speedmaster Dark Side of the Moon powered by the in-house automatic chronograph Caliber 9300. | — | Omega 9300 | — | — |
| Omega | Speedmaster | Professional "Moonwatch" The current generation of the Speedmaster Professional "Moonwatch". | — | Omega 3861 | — | METAS (Master Chronometer), +0/+5 s/d, 15,000 G |
| Omega | Speedmaster | Professional "Moonwatch" The iconic Omega Speedmaster Professional "Moonwatch" produced from 1968 until 2021. | — | Omega 861 | 1968–2021 | — |
| Omega | Speedmaster | Reduced / Automatic Speedmaster Automatic/Reduced powered by modified 7750-family calibers. | — | Omega 1164 | — | — |
| Seiko | Prospex/JDM Alpinist | Alpinist Factory accuracy spec is -15 to +25 seconds per day, tested to 20 bar / 200m water resistance (ISO 22810) with an inner rotating compass bezel and 60 gauss magnetic resistance. | SARB017 | Seiko 6R15 | 2006–2018 | ISO 22810 (Standard Water Resistance) |
Movements
| Maker | Caliber | Base | Winding | Mechanism | Escapement | vph | Jewels | Reserve | Hacking |
|---|---|---|---|---|---|---|---|---|---|
| ETA / Unitas | 6497-1 Classic 16.5-ligne hunter pocket watch ebauche featuring a robust three-tier architecture with traditional click spring, crown wheel, and ratchet wheel layout. | — | Manual | None (Manual) | Swiss Lever | 18,000 | 17 | 46 h | No |
| IWC | 8541 Albert Pellaton's heart-cam and dual-pulling ruby-roller rocker pawl winding architecture. | — | Automatic | Bidirectional (Pellaton Pawl) | Swiss Lever | 19,800 | 25 | 44 h | No |
| Omega | 1120 Heavily refined derivative of the ETA 2892-A2 featuring a rhodium-plated finish, redesigned automatic bridge, and two additional jewels. | — | Automatic | Bidirectional (Reversing Wheels) | Swiss Lever | 28,800 | 23 | 44 h | No |
| Omega | 1164 Highly modified automatic chronograph based on the robust ETA/Valjoux 7750 architecture. | ETA/Valjoux 7750 ebauche | Automatic | Unidirectional (Pawl/Click) | Swiss Lever | 28,800 | — | — | — |
| Omega | 2500 Introduced in 1999, serving as the very first serially produced caliber to feature the friction-reducing Co-Axial escapement. | ETA 2892-A2 ebauche | Automatic | Bidirectional (Reversing Wheels) | Co-Axial | 25,200 | — | — | — |
| Omega | 321 Omega's most famous manual-winding chronograph movement, featuring a traditional column-wheel mechanism. Highly revered by collectors for its aesthetics, complex construction, and historical significance as the movement that went to the moon. | Lemania 2310 ebauche | Manual | None (Manual) | Swiss Lever | 18,000 | — | — | — |
| Omega | 354 Early 1940s and 50s automatic movement where a weighted hammer bounces back and forth between two bumper springs to wind the mainspring, rather than using a 360-degree spinning rotor. | — | Automatic | Bumper / Hammer | Swiss Lever | 19,800 | — | — | — |
| Omega | 3861 The modern evolution of the 1861, significantly upgraded with George Daniels’ Co-Axial escapement and METAS Master Chronometer certification, making it highly anti-magnetic. | Lemania 1873 architecture | Manual | None (Manual) | Co-Axial | 21,600 | — | — | — |
| Omega | 561 Produced in the late 1950s and 60s, these are full-rotor automatics finished in copper tone, known for high accuracy and durability as part of the celebrated 500-series. | — | Automatic | Bidirectional (Reversing Wheels) | Swiss Lever | 19,800 | — | — | — |
| Omega | 8500 Introduced in 2007, marking Omega's return to true in-house manufacturing. Built entirely around the Co-Axial escapement, featuring dual mainspring barrels and a silicon hairspring. | — | Automatic | Bidirectional (Reversing Wheels) | Co-Axial | 25,200 | — | — | — |
| Omega | 861 Introduced in 1968 to replace the complex 321, switching from a column wheel to a cam-actuated chronograph mechanism to increase robustness and simplify production. | Lemania 1873 ebauche | Manual | None (Manual) | Swiss Lever | 21,600 | — | — | — |
| Omega | 8900 First movement to receive METAS Master Chronometer certification, passing rigorous precision and magnetic resistance tests; features a jumping hour hand. | — | Automatic | Bidirectional (Reversing Wheels) | Co-Axial | 25,200 | — | — | — |
| Omega | 9300 Omega's entirely in-house automatic chronograph movement, featuring a column wheel, Co-Axial escapement, and a two-register dial layout. | — | Automatic | Bidirectional (Reversing Wheels) | Co-Axial | 28,800 | — | — | — |
| Seiko | 4R36 (NH36) Modernized Magic Lever automatic architecture adding manual crown winding and stop-seconds (hacking) to the classic 7S26 foundation. | — | Automatic | Bidirectional (Seiko Magic Lever) | Swiss Lever | 21,600 | 24 | 41 h | No |
| Seiko | 6R15 in-house Seiko 6R15 automatic movement (derived from the 7S26 architecture with a Spron 510 mainspring) | — | Automatic | Bidirectional (Seiko Magic Lever) | Swiss Lever | 21,600 | 23 | 50 h | No |
| Seiko | 7S26 Workhorse automatic caliber utilizing Seiko's 1959 V-shaped Magic Lever bidirectional pawl-winding system with minimal moving parts. | — | Automatic | Bidirectional (Seiko Magic Lever) | Swiss Lever | 21,600 | 21 | 41 h | No |
| Tianjin Sea-Gull | ST3600 21,600 vph architectural clone of the Unitas 6497 with three-tier bridge topology ideal for custom watch builds and servicing practice. | — | Manual | None (Manual) | Swiss Lever | 21,600 | 17 | 45 h | No |
| Valjoux | 72 Historic 13-ligne lateral-clutch, 9-pillar column-wheel chronograph movement used in vintage Rolex Daytona, Heuer Carrera, and Breitling Navitimer references. | — | Manual | None (Manual) | Swiss Lever | 18,000 | 17 | 46 h | No |