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Mido 607P
Automatic · 6.75‴ · Switzerland · 1955
Dimensions
15.6 mm
Height
5.45mm
Jewels
17
Power reserve
34h
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 |
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 |
Central Rotor
The most common automatic winding rotor, mounted on the central axis of the movement and rotating a full 360°. Industrialized by Rolex with the Perpetual system in 1931 and refined throughout the 20th century, it offers excellent winding efficiency and remains the de facto standard for automatic wristwatches, whether winding in one or both directions.
|
| 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 | 6.75‴ |
|---|---|
| Shape |
Round
It is the most common form that we can find.
|
| Hand count | 2 |
| Hand sizes | 1.00 x 0.55mm |
| Further measures | Mounting Diameter (Dm): 15.3mm Stem height (T): 1.6mm Mounting Height (F): 0.45mm |
Origin & References
| Manufacturer | Mido |
|---|---|
| Country | Switzerland |
| Launch year | 1955 |
| COSC certified | No |
| Signature | 1-4) 1955: Mido Limited, 607P, Swiss, 17 Jewels; Incabloc
5-7) 1956: 27529, Mido Limited, 607P, Swiss, 17 Jewels; Incabloc |
| US import codes |
Notes
Remarks: 1955-
minor modifications in the begin of the production periode (cf. Fig. 3, 7)
winding gear from beryllium bronze
Incastar regulator (Fig.4, 5):
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. No isochronism error by the gap between the regulator pins.
Other data: balance staff: U2700 stem: W2718 mainspring / battery: 1.50 x 6.0 x 0.06mm stem ronda: 1372 (6,75)
minor modifications in the begin of the production periode (cf. Fig. 3, 7)
winding gear from beryllium bronze
Incastar regulator (Fig.4, 5):
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. No isochronism error by the gap between the regulator pins.
Other data: balance staff: U2700 stem: W2718 mainspring / battery: 1.50 x 6.0 x 0.06mm stem ronda: 1372 (6,75)
Family
Series 607P - 0637PO
18000 A/h, Incastar:
607P: automatic, no second
0617N: manual wind, sweep second
0617NO: manual wind, sweep second, for Ocean Star
0617P: automatic, sweep second
0617PO: automatic, sweep second, for Ocean Star
19800 A/h, Incastar:
0617P-1 : automatic, sweep second
0607PO-1: automatic, sweep second, for Ocean Star
19800 A/h, simple regulator:
0637P : automatic, sweep second
0637PO: automatic, sweep second, for Ocean Star
607P: automatic, no second
0617N: manual wind, sweep second
0617NO: manual wind, sweep second, for Ocean Star
0617P: automatic, sweep second
0617PO: automatic, sweep second, for Ocean Star
19800 A/h, Incastar:
0617P-1 : automatic, sweep second
0607PO-1: automatic, sweep second, for Ocean Star
19800 A/h, simple regulator:
0637P : automatic, sweep second
0637PO: automatic, sweep second, for Ocean Star
Related calibers
Mido 0617P
Mido 0617P-1
Mido 0617PO
Mido 0617PO-1
Mido 0637P
Mido 0637PO
Mido 607P
Compatible Parts
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