Tudor 2100 Tp Manual
For collectors and watchmakers, here are the details you would find in a full Tudor 2100 TP manual technical appendix.
| Feature | Specification | | :--- | :--- | | Movement | Tudor Calibre 1182 (manual-wind) | | Base Movement | FEF 380 or 390 (later ETA 2451) | | Jewels | 17 or 21 jewels (varies by production year) | | Beat Rate | 18,000 A/h (2.5 Hz) | | Power Reserve | ~44 hours | | Lift Angle | 48 degrees | | Stem | Rolex-style (common with 3135 series, but shorter) | | Crystal | Acrylic, part # 25-118 (Tropic 28 or 29 profile) | | Gasket Sizes | Crown tube: 2.5mm x 1.5mm; Caseback: 30mm x 0.8mm | | Lume | Tritium (original) – now often degraded to a patina’d cream/yellow |
By 1970, Tudor needed to evolve. The Valjoux 7734 manual movement in the 703x series was reliable but dated. Rolex (Tudor’s parent company) was preparing to introduce an automatic chronograph for Tudor using the Valjoux 7750 (which became the ref. 9400). tudor 2100 tp manual
However, supply chain delays and testing phases forced Tudor to produce a hybrid or transitional reference. Enter the Ref. 2100.
Because the case was designed for an automatic rotor, the space inside was cavernous. To fill this gap, Tudor used a thicker movement ring. Collectors refer to this configuration as the “TP” (Transitional Period) manual. For collectors and watchmakers, here are the details
When you first handle a Tudor 2100 TP:
The market is full of “Franken” watches (automatic 9400s with manual movements swapped in, or 2100s with incorrect dials). Use this checklist: Because the case was designed for an automatic
| Feature | Genuine 2100 TP | Fake/Franken | | :--- | :--- | :--- | | Case ref. | 2100 between lugs at 12 o’clock | 9400, 791x, or missing | | Movement | Valjoux 234 (manual) | Valjoux 7750 (auto) or generic Chinese | | Spacer ring | Thick, metal, fills the case | Thin plastic or missing | | Crown position | Sits slightly recessed | Flush (auto stem length) | | Pushers | Screw-down, period-correct | Pump pushers (wrong era) |