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Parrenin 45G
Manual · 10.5‴ · Germany · 1970
Dimensions
23.7 mm
Height
—
Jewels
5
Power reserve
41h
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 |
Pin Lever
Also known as the Roskopf escapement, this is a simplified, low-cost variant of the Swiss Lever using steel pins instead of jewelled pallet stones. Less accurate but inexpensive to produce, it democratized mechanical watchmaking in the 20th century, populating affordable alarm clocks and entry-level watches worldwide.
|
| 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 | 10.5‴ |
|---|---|
| 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.
,
Date
An essential for many, the date display reminds wearers of their daily commitments, connecting the abstract concept of time to tangible daily events.
,
Chronograph Stopwatch
Functionality meets style as this feature allows wearers to measure specific time intervals, embodying the blend of everyday utility with sophisticated design.
|
| Hand count | 3 |
| Hand sizes | 1.40 x 0.80 / 0.22mm |
| Further measures | Mounting Diameter (Dm): 23.3mm |
Origin & References
| Manufacturer | Parrenin |
|---|---|
| Country | Germany |
| Launch year | 1970 |
| COSC certified | No |
| Signature | ca. 1970: CHP 66, Emes 17a, Germany; Rufa-Anti-Shock
(Müller-Schlenker 17a) |
Notes
Remarks: pin-lever escapement
two-layer base plate
bushings for almost all bearings allow variants with more jewels
ingenious: one simple part replaces setting-lever spring, yoke, and yoke spring
Müller-Schlenker 17a and Parrenin 66 are equivalent. Likely the production was passed from Parrenin to Müller-Schlenker.
Other data: balance staff: U3217 stem: W3153 mainspring / battery: Zf1323, 1.60 x 10.0 x 0.11 x 320mm
two-layer base plate
bushings for almost all bearings allow variants with more jewels
ingenious: one simple part replaces setting-lever spring, yoke, and yoke spring
Müller-Schlenker 17a and Parrenin 66 are equivalent. Likely the production was passed from Parrenin to Müller-Schlenker.
Other data: balance staff: U3217 stem: W3153 mainspring / battery: Zf1323, 1.60 x 10.0 x 0.11 x 320mm
Family
Series 45 - 66
45: no shock protection
45G: no shock protection, date
66: with shock protection
45G: no shock protection, date
66: with shock protection
Related calibers
Parrenin 45
Parrenin 45G
Parrenin 66