Jaeger-LeCoultre Geophysic
Traces to the chronometer-grade 1958 Geophysic (ref. E168), built for the International Geophysical Year. Revived 2014-2015 as Geophysic 1958, Geophysic True Second, and Geophysic Universal Time.
7 references
“Differs” marks a spec with different recorded values. — means not recorded.
| Spec | E168 Geophysic | Q800652J Geophysic 1958 (platinum boutique limited edition) | Q8002520 Geophysic 1958 (pink gold limited edition) | Q8008520 Geophysic 1958 | Q8012520 Geophysic True Second | Q8018420 Geophysic True Second | Q8108420 Geophysic Universal Time |
|---|---|---|---|---|---|---|---|
| Case size Differs | 35 mm | 38.5 mm | 38.5 mm | 38.5 mm | Not recorded | 40 mm | 41.6 mm |
| Thickness Differs | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | 12 mm | 11 mm |
| Case Differs | stainless steel, round | platinum, round | pink gold, round | stainless steel, round | pink gold, round | stainless steel, round | stainless steel, round |
| Crystal | Not recorded | sapphire | sapphire | sapphire | sapphire | sapphire | sapphire |
| Water resistance | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | 50 m | 50 m |
| Caliber Differs | P478/BWSbr | 898/1 | 898/1 | 898/1 | 770 | 770 | 772 |
| Movement maker | Jaeger-LeCoultre | Jaeger-LeCoultre | Jaeger-LeCoultre | Jaeger-LeCoultre | Jaeger-LeCoultre | Jaeger-LeCoultre | Jaeger-LeCoultre |
| Movement type Differs | Manual | Automatic | Automatic | Automatic | Automatic | Automatic | Automatic |
| Jewels Differs | 17 | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | 36 |
| Frequency | Not recorded | 28800 vph | 28800 vph | 28800 vph | Not recorded | Not recorded | Not recorded |
| Power reserve Differs | Not recorded | 43 h | 43 h | 43 h | 40 h | 40 h | 40 h |
| Complications Differs | hacking-seconds | hacking-seconds | hacking-seconds | hacking-seconds | deadbeat-seconds | deadbeat-seconds | world-time, deadbeat-seconds |
| Dial Differs | white | Not recorded | Not recorded | white | Not recorded | silver | Not recorded |
| Indices | applied radial steel | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| Lume | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | luminous | Not recorded |
| Bracelet | Not recorded | Not recorded | alligator strap | alligator strap | Not recorded | alligator strap | Not recorded |
| Produced Differs | 1958–1958 | 2014 | 2014 | 2014 | 2015 | 2015 | 2015 |
| Limited edition Differs | Not recorded | 58 pieces | 300 pieces | 800 pieces | Not recorded | Not recorded | Not recorded |