Catalogue record · Pocket watch
Waltham Crescent Street (845 movement)
Partially verifiedWaltham's premier named grade of the bridge-movement era, successor in spirit to the nineteenth-century Waltham high grades and a regular choice for American railroad service.
Overview
Crescent Street is Waltham's best-known high grade of the twentieth-century bridge-movement period, produced in 16 size with the lever-set arrangement and jewel counts required for railroad approval.
The name was used across more than one movement generation at Waltham; the Model 845 designation refers to a specific 16 size bridge movement within that lineage and should be distinguished from earlier full-plate Crescent Street grades of the nineteenth century.
History
Waltham used named grades — Crescent Street among the most prestigious — to market its better-finished and better-adjusted movements above the plain commercial grades sold under names like Wm. Ellery.
As American railroad standards matured, Waltham re-engineered its high grades into 16 size, lever-set bridge movements to remain competitive with Hamilton, Illinois and Elgin in the railroad-watch market.
Design
Bridge-plate architecture with the balance under a separate cock or bridge, giving good serviceability compared with Waltham's earlier full-plate designs.
Adjustment mechanisms and finishing — polished steel, damascened plates — are more elaborate than on Waltham's plain commercial grades.
Movement
Higher jewel counts, careful poising and multi-position adjustment mark the railroad-standard Crescent Street runs.
Because Waltham reused prestige names across different movement generations, the movement's construction and serial number, not the grade name alone, establish which Crescent Street it is.
Case
As with all American factory watches, case and movement were sold separately; a period-correct but not originally married pairing is normal.
Dial and hands
Enamel dial condition — chips at the winding and setting holes, hairlines, and evidence of repainting — should be assessed as with other American railroad watches of the period.
Technical specifications
| Movement | Waltham 16 size bridge movement, Crescent Street grade |
|---|---|
| Movement type | Bridge, lever-set, stem-wind, 16 size |
| Escapement | Lever escapement |
| Jewels | 17, 19 or 21 jewels depending on the specific Crescent Street production run |
| Winding and setting | Stem-wind, lever-set |
| Size | 16 size |
| Power reserve | Approximately 30–36 hours |
| Frequency | 18,000 vibrations per hour (2.5 Hz) |
| Accuracy | Adjusted railroad grade; actual rate depends on servicing and condition |
| Complications | Running seconds |
| Size | 16 size |
| Jewels | 17–21 depending on run |
| Setting | Lever-set |
| Escapement | Lever |
Identification
- Crescent Street grade name and Waltham signature on the top plate, with a serial number for dating against published lists.
- Bridge construction and a lever-setting slot mark the twentieth-century railroad-grade form.
Variations
- Nineteenth-century full-plate Crescent Street grades differ substantially from the twentieth-century 16 size bridge movements including the Model 845.
- Jewel counts and adjustment claims vary by production run; read the movement, not just the name.
Serial numbers and dating
- Waltham serial numbers are documented in published reference tables and give an estimated production year for the movement.
Known examples and institutional holdings
- Widely represented in American pocket watch collections; institutional collections of American industrial history hold representative examples.
Collecting
- Popular with collectors of American railroad watches for its finish and its place in the Waltham hierarchy of grades.
- No values are given here; condition, dial originality, case and market at time of sale all bear on price.
Restoration and conservation
- Preserve any watchmaker's service marks inside the case back; they document a working history.
- Movement work — cleaning, lubrication, mainspring replacement, pivot or jewel work — belongs with a qualified watchmaker. Conserve original parts; do not refinish dials or polish cases to remove honest wear.
Bibliography
- Published Waltham serial-number and grade references (edition-dependent).
- Historical studies of the American railroad watch industry.
Bibliographic entries are given only at the level we can support. Where an edition, publisher or ISBN is not confirmed, it is deliberately omitted rather than invented.
Photographs
Photographs are illustrative examples of the type, not necessarily the exact object described. Verify details against the source file page.
Sources & references
- Published Waltham grade and serial-number references.
- Institutional histories of the Waltham Watch Company.
Where sources disagree, the disagreement is stated rather than resolved silently.