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Judex 121
Basic Information
| Name | Judex 121 |
|---|---|
| Manufacturer | Judex |
| Launch Year | 1955 |
| Caliber Family | Description 120-123: sub second 124: indirect sweep second 125: sub second, date hand 125G: sub second, date 126: sub second, day, date 127: direct sweep second 127(CLD): direct sweep second, date 127(CLDA): direct sweep second, date hand 127(CLDD): direct sweep second, day, date all without calibre signature or signed with 123, 127 Related calibers Judex 120, Judex 121, Judex 122, Judex 123, Judex 125, Judex 125G, Judex 126, Judex 127, Judex 127 (CLD), Judex 127 (CLDA), Judex 127 (CLDD) |
| Is COSC certified | No |
Technical Details
| Lignes Dimensions | 10.5 ‴ |
|---|---|
| Dimensions | 23.75 mm |
| Height | 3.8 mm |
| Further Measures | Mounting Diameter (Dm): 23.4mm Stem height (T): 1.8mm Mounting Height (F): 0.6mm |
| Power Reserve | 37 hours |
| Frequency | 18,000 vph |
| Jewels | 21 |
Complications and Specifications
| Shape | Round |
|---|---|
| Complications |
|
| Regulator Type | Pinned Regulator (or Index Regulator) |
| Movement Type | Manual |
| Escapement Type | Swiss Lever |
| Control Type | Balance Wheel |
| Winding Type | Stem Winding (Crown) |
| Setting Type | Stem Set (Crown Pull) |
Additional Information
| Hand Sizes | 1.40 x 0.80 / 0.20mm |
|---|---|
| Hand Count | 3 |
| Country Of Manufacture | (not set) |
| Notes | Remarks: base plate flat or bevelled differences not known between 120-123 Other data: balance staff: U790 stem: W816 mainspring / battery: Zf1313, 1.60 x 9.0 x 0.11 x 260mm balance staff ronda: 2733 (10,5) Ranfft mentioned about this caliber: There are variants with this quantity of jewels 17, 21 |
| Signature | ca. 1955: 21 Jewels; Unishock (Judex 125 without dade module) |
Metadata
| Created At | Sep 15, 2023 |
|---|---|
| Updated At | Apr 23, 2025, 11:33:03 PM |
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