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Omega 30.10T1 RA PC
Automatic · 13.52‴ · Switzerland · 1949
Dimensions
30.5 mm
Height
4.55mm
Jewels
17
Power reserve
42h
Timegrapher
Beat rate
19,800bph
Frequency
2.75Hz
Reference: healthy amplitude ≈ 270–315° fully wound (>200° at 24 h); beat error ideally < 0.5 ms.
Movement
| Movement type |
Automatic
Mechanical movements fitted with an oscillating rotor that winds the mainspring through the wearer's natural motion. Invented by Abraham-Louis Perrelet around 1777 for pocket watches and adapted to the wristwatch by John Harwood in 1923, it combines traditional craftsmanship with everyday convenience.
|
|---|---|
| Winding type |
Automatic (Rotor-Driven)
Self-winding via a rotor whose motion winds the mainspring through a transmission gear train. The specific rotor configuration (central, micro, peripheral, bumper) is catalogued separately under Rotor Type. Standard on the vast majority of mechanical wristwatches since the mid-20th century.
|
| Setting type |
Stem Set (Crown Pull)
The dominant modern system: pulling the crown out to a setting position engages the hand-setting mechanism. Introduced in the late 19th century and refined into multi-position crowns (date, time, GMT). Used in virtually all modern wristwatches and most 20th-century pocket watches.
|
| Escapement type |
Swiss Lever
The undisputed standard of modern mechanical watchmaking. Through an elegant interplay between escape wheel, pallet fork, and balance, it delivers reliable impulses with the safety of 'draw' to keep the lever locked. Refined since the 18th century, it powers almost every quality mechanical wristwatch made today.
|
| Control type |
Balance Wheel
The heart of mechanical timepieces, the balance wheel is an oscillating component that, together with the hairspring, forms a harmonic oscillator regulating the gear train's pace. Its steady back-and-forth motion ensures the even release of energy from the mainspring, governing the watch's accuracy.
|
| Regulator type |
Pinned Regulator (or Index Regulator)
The most traditional regulator, consisting of a movable index pointer fitted with two curb pins (or a pin and a boot) that embrace the hairspring. Sliding the index along its scale changes the spring's active length, adjusting the rate. Simple, reliable, and easy to service, it remains the workhorse standard across countless mechanical movements.
|
| Rotor type |
Hammer (or Bumper) Rotor
An early automatic design where the rotor swings back and forth within a limited arc, striking small spring buffers at each end (hence 'bumper'). Introduced by John Harwood in 1923 and used in vintage calibres from Eterna, Felsa, JLC Futurematic, and early Rolex Oysters. Largely superseded by full-rotation rotors after 1948.
|
| Shock protection |
Incabloc
The most famous and widely used shock protection system in horology. Invented in 1934 by Georges Braunschweig and Fritz Marti at Universal Escapements (La Chaux-de-Fonds), it employs a lyre-shaped spring holding the jewel setting, allowing it to shift under impact and return to position. Adopted by countless Swiss makers across the 20th century.
|
Specifications
| Lignes | 13.52‴ |
|---|---|
| Shape |
Round
It is the most common form that we can find.
|
| Complications |
Sub Second
A small seconds hand typically located on a sub-dial and is separate from the central hour and minute hands. Originating from early pocket watches where the main balance wheel drove the seconds hand, it offers an elegant way to track the passage of time without crowding the main display. It remains a testimony to the watch's mechanical precision and history.
|
| Hand count | 3 |
| Hand sizes | 1.40 x 0.65 / 0.15mm |
| Further measures | Mounting Diameter (Dm): 30.1mm Stem height (T): 1.5mm Mounting Height (F): 1.4mm |
Origin & References
| Manufacturer | Omega |
|---|---|
| Country | Switzerland |
| Launch year | 1949 |
| COSC certified | Yes |
| Signature | 1944: 9844557, 30.10 RA.PC, M, Omega, Swiss, 17 Jewels; Incabloc
(Omega 30.10RA PC) |
| US import codes |
Notes
Remarks: 1949
family 28.10, 30.10 (330...355): 1943-1955, >1300000 (incl. >500000 chronometers)
1949 renamed 30.10T1 RA PC to 332
Other data: balance staff: U1604 stem: W2907 mainspring / battery: Zf490, 1.10 x 8.5 x 0.10 x 250mm
family 28.10, 30.10 (330...355): 1943-1955, >1300000 (incl. >500000 chronometers)
1949 renamed 30.10T1 RA PC to 332
Other data: balance staff: U1604 stem: W2907 mainspring / battery: Zf490, 1.10 x 8.5 x 0.10 x 250mm
Family
Series 330 (30.10RA PC) - 355
30.1mm, sub second:
330 (30.10RA PC): -
331 (30.10RA PC AM): antimagnetic
332 (30.10T1 RA PC): redesign 331
333 (30.10T1 RA PC RG): excenter regulator
28.1mm, sub second:
340 (28.10RA PC): -
341: jubilee edition of 340
342 (28.10T1 RA PC): redesign 340
343 (28.10T1 RA PC RG): Chronometer, excenter regulator
344: redesign 342
28.1mm, sweep second:
350 (28.10RA SC PC): -
351 (28.10T1 RA SC PC): redesign 350
352: chronometer, excenter regulator
353: date
354: redesign 351
355: date, redesign 353
330 (30.10RA PC): -
331 (30.10RA PC AM): antimagnetic
332 (30.10T1 RA PC): redesign 331
333 (30.10T1 RA PC RG): excenter regulator
28.1mm, sub second:
340 (28.10RA PC): -
341: jubilee edition of 340
342 (28.10T1 RA PC): redesign 340
343 (28.10T1 RA PC RG): Chronometer, excenter regulator
344: redesign 342
28.1mm, sweep second:
350 (28.10RA SC PC): -
351 (28.10T1 RA SC PC): redesign 350
352: chronometer, excenter regulator
353: date
354: redesign 351
355: date, redesign 353
Related calibers
Omega 28.10RA PC
Omega 28.10RA SC PC
Omega 28.10T1 RA PC
Omega 28.10T1 RA PC RG
Omega 28.10T1 RA SC PC
Omega 30.10RA PC
Omega 30.10RA PC AM
Omega 30.10T1 RA PC
Omega 30.10T1 RA PC RG
Omega 330
Omega 331
Omega 332
Omega 333
Omega 340
Omega 341
Omega 342
Omega 343
Omega 344
Omega 350
Omega 351
Omega 352
Omega 353
Omega 354
Omega 355