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IWC 53 19" H6
Manual · 19‴ · Switzerland · 1907
Dimensions
43.2 mm
Height
6.00mm
Jewels
16
Power reserve
30h
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 |
Lever Set
A small lever, hidden under the bezel or accessible after removing it, is pulled out to engage the setting mode while the crown is turned. Required by US railroad chronometer standards from 1893 to prevent accidental time changes. Common in American pocket watches from Hamilton, Waltham, Elgin, and Illinois.
|
| 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 | 19‴ |
|---|---|
| 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 | 1.90 x 1.00 / 0.26mm |
| Further measures | Mounting Diameter (Dm): 41.95mm Winding Gear: 0.2mm Stem height (T): 2.15mm Mounting Height (F): 0.8mm |
Origin & References
| Manufacturer | IWC |
|---|---|
| Country | Switzerland |
| Launch year | 1907 |
| COSC certified | No |
| Signature | 1-3) 1910: 487998, +31457, IWC Probus Scafusia - IWC Probus Scafusia
(16 jewels)
4-5) 1912: 552458, +31457, 55231, IWC Probus Scafusia - IWC Probus Scafusia
(16 jewels) |
Notes
Remarks: 1907-1919, 54600
1889-1927, ~176820 (all 53)
hunter calibre
bimetallic screw balance with 4 adjustment screws
Breguet hairspring
patented big bearings for crown- and ratchet wheel
barrel with Geneva stopwork
details cf. IWC 52 19" H5
Other data: balance staff: U1447 stem: W1724 mainspring / battery: 2.05 x 0.20mm swiss patent 31457: filed 05-11-1904, Fabrique d'Horlogerie de J. Rauschenbach (CH) crown- and ratchet wheel with top- and bottom part, kept together with three screws each swiss patent 55231: dial fitting after push-button principle (Fig.4) filed 03-28-1911, Uhrenfabrik von J. Rauschenbach (CH)
Ranfft mentioned about this caliber: There are variants with this quantity of jewels 15, 16
1889-1927, ~176820 (all 53)
hunter calibre
bimetallic screw balance with 4 adjustment screws
Breguet hairspring
patented big bearings for crown- and ratchet wheel
barrel with Geneva stopwork
details cf. IWC 52 19" H5
Other data: balance staff: U1447 stem: W1724 mainspring / battery: 2.05 x 0.20mm swiss patent 31457: filed 05-11-1904, Fabrique d'Horlogerie de J. Rauschenbach (CH) crown- and ratchet wheel with top- and bottom part, kept together with three screws each swiss patent 55231: dial fitting after push-button principle (Fig.4) filed 03-28-1911, Uhrenfabrik von J. Rauschenbach (CH)
Ranfft mentioned about this caliber: There are variants with this quantity of jewels 15, 16