- Movement
- Manual winding
- Size
- 44 mm
Overview
A hundredth of a second, released by the escapement
The F.P. Journe Centigraphe, reference CT2, in platinum on the platinum bracelet, blue-mauve silver guilloché dial with matte white gold numerals and a whitened guilloché silver seconds counter. 44 mm and 11 mm high; manually wound calibre 1506 in 18K rose gold, a hundredth-of-a-second chronograph controlled by a single rocker.
The Centigraphe of the lineSport collection is a hand-wound chronograph that reads elapsed time from a hundredth of a second to ten minutes on three dials, each scaled in black and red. The movement is in 18K rose gold, in a 44 mm case 11 mm high with a ceramic-inlaid bezel and a bracelet in the case metal. The brand's engagement with the ICM, the Institute of Brain and Spinal Cord in Paris, began with the Centigraphe Souverain through Jean Todt, and it states that 30% of the profit on each Centigraphe goes to the institute, without limit of time.
The hundredth-of-a-second hand at 10 o'clock turns once a second. It is not driven round in the ordinary way: a wheel on the escape wheel releases its arbor, so the hand runs on the chronograph train's energy at a pace set by the escapement, and it can be halted anywhere in its second, even between two divisions, by lifting its pinion clear of the escapement's, which presses on the pivot shank as a brake. The hundredth and the 20-second hand at 2 o'clock are driven by two trains taken from the centre of the mainspring, and a third train from the barrel arbor drives the 10-minute hand at 6 o'clock; the arrangement is patented. Because the chronograph draws from the barrel arbor rather than through the going train, the brand says the balance's amplitude does not change when the chronograph runs. Zeroing is by hammers on snail cams for the two counters and, for the hundredth, by a beak on its pinion that stops against a lever. Start, stop and return to zero are all on one rocker in the case band at 2 o'clock, which is patented too. A maintaining-power device in the barrel keeps the drive up while the crown is turned.
For collectors
The reserve figures say what the chronograph costs: 80 hours with it stopped, 24 with it running, because the chronograph train draws on the same barrel.
Key details
Design and engineering
- Rocker controlOne rocker in the case band at 2 o'clock starts, stops and zeroes the chronograph, in place of two pushers either side of the crown; the brand holds a patent on it. The crown has three positions: 0 disengaged, 1 winding, 2 time-setting.
- Isolated chronographThe hundredth and 20-second hands are driven by separate trains from the centre of the mainspring, and the 10-minute hand by a third from the barrel arbor, so the going train and the balance are left alone while timing. Patented.
- Fractional stopThe hundredth hand can be stopped between divisions. Its pinion is lifted out of mesh with the escapement's and braked on its pivot shank, so the reading is not forced to the nearest hundredth.
- Three scalesHundredths at 10 o'clock, one revolution a second; seconds at 2 o'clock, one revolution in 20 seconds; minutes at 6 o'clock, graduated to 10. Zeroed by hammers on snail cams and, for the hundredth, a beak on its pinion.
- Case and bracelet44 mm, 11 mm high, bezel inlaid with ceramic. Platinum bracelet with a matte hammered finish developed for the model; the links at the case articulate, with a folding clasp adjustable by about 5 mm.
- FinishingCircular stripes on the bridges, circular graining on the base plate, polished screw heads with chamfered slots, pegs with polished rounded ends, straight-grained steel work.
Calibre 1506
- Manual winding; movement in 18K rose gold
- Separate chronograph train driven directly from the mainspring; 1/100th-second readout; rocker to start, stop and zero
- Free-sprung balance, four adjustable inertia weights, Anachron spring; in-line lever escapement, 15-tooth escape wheel
- 21,600 vibrations per hour (3 Hz), 50 jewels
- Power reserve 80 ± 2 hours with the chronograph stopped, 24 ± 2 hours with it running
- Amplitude 320° dial-up at full wind, 280° after 24 hours
- 34.40 mm overall diameter, 5.60 mm high, 284 parts (483 cased up with bracelet)
The reference
Technical specifications
| Reference | CT2 |
|---|---|
| Collection | LineSport |
| Calibre | Calibre 1506 |
| Movement | Manual winding |
| Movement material | 18K rose Gold |
| Functions | Central hours and minutes, One-second chronograph hand at 10 o'clock, 20-seconds chronograph hand at 2 o'clock, 10-minutes chronograph hand at 6 o'clock |
| Case dimensions | 44 mm |
| Case thickness | 11 mm |
| Case material | Platinum |
| Dial | Silver guilloché dial in blue-mauve colour, matte white Gold applied numerals, seconds counter in whitened guilloché Silver |
| Hands | matte rhodium plated and red lacquered Steel |
| Bracelet | Platinum |
| Jewels | 50 |
| Power reserve | 80 ± 2 hours with the chronograph stopped |
| Frequency | 21,600 Alt/h, (3Hz) |
| Movement parts | 284 |
Buying with HYPA
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