RONDA mecano
R150
4.4 mm
11½''', 25.60 mm
Date
3 hands
Product Informations
Product Specifications
| Type | Mechanical movement |
|---|---|
| Line | mecano |
| Caliber | R150 |
| Size | 11½''' |
| Version Swiss Made | 25 jewels |
| Standard hand fitting height | 1 |
Functions
| Date |
| 3 hands |
Features
Bidirectional automatic winding with ball bearing |
Repairable metal watch movement |
Specifications Balance wheel
| Stabilizing time | 20 s |
|---|---|
| Measuring time | 40 s |
Regulation
| Average rate | 12 s/d ± 12 s/d at rate CH, 6H |
|---|---|
| Maximum variance in all positions | 30 s/d |
| Isochronism over 24 h | ± 20 s/d |
Winding mechanism
| Winding mechanism | Automatic |
|---|---|
| Main spring | Nivaflex |
Specifications
Technical Specifications
| Diameter Total | 26.00 mm |
|---|---|
| Case fitting | 25.60 mm |
| Movement height | 4.40 mm |
| Movement rest | 1.20 mm |
| Height over stem | 1.80 mm |
| Length of stem travel | 0.80 mm |
| Stem thread | 0.90 mm |
| Stem max Ø | 1.20 mm |
| Frequency: vibrations per hour | 28'800 (4 Hz) |
| Power reserve | 40 h |
| Operating temperature | 0 - 50 °C |
|---|---|
| Resistance to magnetic fields | 18.8 Oe |
| Resistance against shock | NIHS 91-10 |
Performances
| Escapement | |||
|---|---|---|---|
| Performance | Elaboré | ||
| Running time | min. 40 h | ||
| Escapment | Swiss silicone escapment | ||
| Balance spring | Nivarox | ||
| Fine timing device | with screws on the balance wheel | ||
| Shock absorber | |||
| Barrel spring | Nivaflex | ||
| Regulation | ||||||
|---|---|---|---|---|---|---|
| Performance | Elaboré | |||||
| Positions | 0h | CH, 6H | ||||
| Average value of rate | 0 .. 14 s/d | |||||
| Max. divergence all positions | 20 s/d | |||||
| Isochronism | CH 0h - CH 24h | |||||
| Max. amplitude | CH 0h | |||||
| Min. amplitude | 6H 24h | |||||
| Lift angle | ||||||
| ||||||
| Stabilisation time / rate resumption | ||||||
| Integration time / Measuring | ||||||
| Temperature | ||||||
| The limit values are subject to interpretation: 95% of the pieces delivered in a lot must be within the specified limit values. | ||||||
| All checks are made without the calendar in function. The check at full winding, referred to as 0h, has to be done after 1 to 3 hours running. The check indicated as 24 h takes place 24 to 25 hours after full winding. | ||||||
| When checking the instaneous rate and the amplitudes, the inherent tolerance of the measuring instruments and the influence of temperature variations and the atmospheric pressure must be taken into account. | ||||||
Technical documents
Terms of warranty
| Terms of warranty |
|---|
Watch production
| Drawing Casing ring | |
|---|---|
| Drawing Dial | |
| Drawing Hand fitting | |
| Drawing Stem | |
| Verification of specifications | |
| Casing information | |
| Manual winding test |
User's manual
| User's manual | PDF with folding marks |
|---|
Watch repairs
| Technical instruction |
|---|
Movement holders
Movement holders
Movement holder for hand setting
 |
| H R150.1A |
Movement holder for stem removal
 |
| H R150.1T |
Various info
Various info
Product Symbol
 |
| R150 |