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Omega 30
Manual · 13.52‴ · Switzerland · 1939
Dimensions
30.5 mm
Height
4.05mm
Jewels
15
Power reserve
44h
Timegrapher
Beat rate
18,000bph
Frequency
2.5Hz
Reference: healthy amplitude ≈ 270–315° fully wound (>200° at 24 h); beat error ideally < 0.5 ms.
Movement
| Movement type |
Manual
Purely mechanical movements wound by hand via the crown, which tensions the mainspring to store energy. As the spring unwinds, it drives the gear train at a controlled rate set by the escapement and balance. Typical power reserves range from 38 to 80 hours, requiring daily or near-daily winding to keep the watch running.
|
|---|---|
| Winding type |
Stem Winding (Crown)
Winding the mainspring by turning the crown attached to the stem, transmitting torque through the winding pinion. Patented by Adrien Philippe in 1842, it replaced key winding and remains the standard manual winding method for both pocket watches and wristwatches.
|
| 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.
|
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 0.75 / 0.19mm |
| Further measures | Mounting Diameter (Dm): 30.0mm Stem height (T): 1.7mm Mounting Height (F): 0.5mm |
Origin & References
| Manufacturer | Omega |
|---|---|
| Country | Switzerland |
| Launch year | 1939 |
| COSC certified | No |
| Signature | 1939: 9025819, Omega Swiss, 15 Jewels |
| US import codes |
Notes
Remarks: 1939-1963, >1400000 (whole family except 269,286)
from 1943 Incabloc
Other data: balance staff: U621 stem: W621 mainspring / battery: 1.50 x 11.5 x 0.14mm balance staff ronda: 1878 (12,75) stem ronda: 373 (10,5) stem ronda: 1360 (12,75) Mainspring: 1.500 x 12.500 x 0.150 x 340.000 mm
from 1943 Incabloc
Other data: balance staff: U621 stem: W621 mainspring / battery: 1.50 x 11.5 x 0.14mm balance staff ronda: 1878 (12,75) stem ronda: 373 (10,5) stem ronda: 1360 (12,75) Mainspring: 1.500 x 12.500 x 0.150 x 340.000 mm
Family
Series 30 - 286
sub second:
30 : 15 jewels, no shock protection
30T1: 15 jewels, no shock protection
30T2: 15 jewels, no shock protection
30T2PC: 15 jewels, Incabloc
260: =30T2 since 1949, 15 jewels
261: 17 jewels, antimagnetic
262: 17 jewels, excenter regulator
265: 15 jewels, antimagnetic
266,267: 17 jewels, antimagnetic
268: ring- instead screw balance
269: flat- instead Breguet-hairspring
sweep second:
30SC : 16 jewels, no shock protection
30T1: 16 jewels, no shock protection
30T2SC: 16 jwwels, no shock protection
30T2SCPC: 17/18 jewels, Incabloc
280: =Omega 30SC T2 since 1949, 17 jewels
281: 17 jewels, excenter regulator
283,284: 17 jewels, antimagnetic
285: ring- instead screw balance
286: flat- instead Breguet-hairspring
30 : 15 jewels, no shock protection
30T1: 15 jewels, no shock protection
30T2: 15 jewels, no shock protection
30T2PC: 15 jewels, Incabloc
260: =30T2 since 1949, 15 jewels
261: 17 jewels, antimagnetic
262: 17 jewels, excenter regulator
265: 15 jewels, antimagnetic
266,267: 17 jewels, antimagnetic
268: ring- instead screw balance
269: flat- instead Breguet-hairspring
sweep second:
30SC : 16 jewels, no shock protection
30T1: 16 jewels, no shock protection
30T2SC: 16 jwwels, no shock protection
30T2SCPC: 17/18 jewels, Incabloc
280: =Omega 30SC T2 since 1949, 17 jewels
281: 17 jewels, excenter regulator
283,284: 17 jewels, antimagnetic
285: ring- instead screw balance
286: flat- instead Breguet-hairspring
Related calibers
Omega 260
Omega 261
Omega 262
Omega 265
Omega 266
Omega 267
Omega 268
Omega 269
Omega 280
Omega 281
Omega 283
Omega 284
Omega 285
Omega 286
Omega 30
Omega 30SC
Omega 30T1
Omega 30T1SC
Omega 30T2
Omega 30T2PC
Omega 30T2SC
Omega 30T2SCPC
Compatible Parts
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