Πως θα ξέρουμε αν το ρολόι μας έχει αυτό το κύκλωμα;
Βασικά επειδή πολύ λίγα quartz το έχουν θα το γράφουν καθαρά άμα έχει.
Παρακάτω μια λίστα με τα βασικά thermocompensated ρολόγια/μηχανές
5 s/year :
Citizen Chronomaster "The Citizen" : classical design with perpetual calendar. Caliber A660. 32768 Hz quartz, thermocompensated ? 1 150 - 4 500 €
10 s/year :
Citizen "The Exceed" : classical design. 940 - 1 550 €
Longines Flagship VHP : classical design with perpetual calendar. Caliber L546 (ETA Thermoline movement 252.611).
Piquot Meridien Octantis : Marine Chronometercertified by the Besançon National Observatory in France. Perpetual calendar. ETA Thermoline movement. 1 185 - 1 738 €
Seiko "Grand Seiko" : classical design. 32768 Hz thermocompensated quartz. 1 150 - 3 700 €
Seiko Dolce & Exceline : women and men assorted watches. Not all models of this line have the 10s/y accuracy. 390 - 900 €
15 s/year :
Breitling SuperQuartz : Aerospace, B-1, and Colt models. As far as I know, no official accuracy claim from Breitling, but their chinese representative gives an accuracy of 15 s/year. This value seems conservative, as these watches use an ETA Thermoline movement, which is said to be rated at +/-0.02 second per day (less than 10 s/year).
20 s/year :
Mühle Marine Chronometer : Desk marine chronometer actually built by Hanseatic Instruments. 4.19 Mhz quartz, temperature stabilized. Here is a picture of the test certificate which comes with the clock. The manufacturer claims an accuracy of 0.01 s/day (3.65 s/year), but my model loses 16 s/year (+/-1s). Nevertheless it could be adjusted without opening the case with an oscilloscope and a small screwdriver. 2000 €
Omega Constellation Perpetual Calendar : thermocompensated quartz, caliber 1680 (ETA Thermoline movement 252.511).
Seiko Brightz Chronograph : Caliber 7J21. 700 - 900 €
Seiko Spirit : classical design with perpetual calendar. Models SBQLxxx & SBQKxxx. Caliber 8F32 & 8F33, 196 608 Hz quartz
Seiko Brightz SAGM007 & 009. classical design with perpetual calendar. Caliber 8F32. 600 - 780 €
Seiko Diver Scuba 200 m : diver watch with perpetual calendar, from Prospex line (Sport watches). Models SBCMxxx. Caliber 8F35, 196 608 Hz quartz. 200 - 230 €
Seiko Alpinist : perpetual calendar and 24 h hand, from Prospex line. Caliber 8F56, 196 608 Hz quartz. 300 - 350 €
25 s/year :
Kriëger Tidal Chronometer : 200 m water resistant watch which gives moon phases and tides. The manufacturer didn't give its accuracy but it is COSC certified. 900 - 1000 €
?? s/year :
Sjoo Sandstrom