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Mido 0915
Manual · 11‴ · Switzerland · 1950
Dimensions
25.8 mm
Height
3.20mm
Jewels
15
Power reserve
—
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.
|
| 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 | 11‴ |
|---|---|
| Shape |
Round
It is the most common form that we can find.
|
| Complications |
Sweep Second
Contrary to the ticking motion of quartz watches, the sweep second hand in mechanical watches moves smoothly around the dial, offering a visual representation of time flowing continuously. This has become synonymous with the precision and craft of mechanical horology.
|
| Hand count | 3 |
| Hand sizes | 1.30 x 0.84 x 0.21mm |
| Further measures | Mounting Diameter (Dm): 25.3mm Stem height (T): 1.6mm Mounting Height (F): 0.8mm |
Origin & References
| Manufacturer | Mido |
|---|---|
| Country | Switzerland |
| Launch year | 1950 |
| COSC certified | No |
| Signature | 1950: Mido, Swiss, 3x Adjust., 15 Jewels; Incabloc
(Incastar) |
| US import codes |
Notes
Remarks: less known manual-wind version of the 0917
exclusively for Mido with base plate of the AS 1131/1132
gold lever
option Incastar regulator:
The only large-scale produced regulator featuring a free oscillating hairspring. The end of the spring is fixed between two rollers, adjusting actually its length (Fig.2, 3). No isochronism error by the gap between the regulator pins.
Other data: balance staff: U1698 stem: W2058 mainspring / battery: Zf931, 1.35 x 8.0 x 0.09 x 250mm
exclusively for Mido with base plate of the AS 1131/1132
gold lever
option Incastar regulator:
The only large-scale produced regulator featuring a free oscillating hairspring. The end of the spring is fixed between two rollers, adjusting actually its length (Fig.2, 3). No isochronism error by the gap between the regulator pins.
Other data: balance staff: U1698 stem: W2058 mainspring / battery: Zf931, 1.35 x 8.0 x 0.09 x 250mm
Family
Series 00916P - 917
10.5" :
00916P: rotor, sub second
00917P: rotor, sweep second
11'':
0915: manual wind, sweep second
0916: bumper, sub second
0916P: rotor, sub second
0917: bumper, sweep second
0917P: rotor, sweep second
0917PC: rotor, sweep second, date
12" :
916P: rotor, sub second
917P: rotor, sweep second
917PO: same, especially for Ocean Star
917R: same, extra quality
917PC: rotor, sweep second, date
917PCO: same, especially for Ocean Star
917RC: same, extra quality
12.5" :
916: bumper, sub second
917: bumper, sweep second
00916P: rotor, sub second
00917P: rotor, sweep second
11'':
0915: manual wind, sweep second
0916: bumper, sub second
0916P: rotor, sub second
0917: bumper, sweep second
0917P: rotor, sweep second
0917PC: rotor, sweep second, date
12" :
916P: rotor, sub second
917P: rotor, sweep second
917PO: same, especially for Ocean Star
917R: same, extra quality
917PC: rotor, sweep second, date
917PCO: same, especially for Ocean Star
917RC: same, extra quality
12.5" :
916: bumper, sub second
917: bumper, sweep second
Related calibers
Mido 00916P
Mido 00917P
Mido 0915
Mido 0916
Mido 0916P
Mido 0917
Mido 0917P
Mido 0917PC
Mido 916
Mido 916P
Mido 917
Mido 917P
Mido 917PC
Mido 917PCO
Mido 917PO
Mido 917R
Mido 917RC