LeCoultre 494
Mechanical
Date
Day
No photos yet
Notes
options: Breguet hairspring*, separate escape-wheel cock**, shock protection**
(* scarcely or never, ** often or always)
Assignment troubles:
Flume lists 3 balance staffs assigned to calibres, Ronda lists 4 staffs for all calibres, LeCoultre data sheets mention no differences.
Calibres specified in data sheet with shock protection are occasionally met without.
Calibres specified in data sheet with optional shock protection are never met without.
Dimensions
| Width | — |
|---|---|
| Height | 5.25 mm |
| Stem height | — |
| Hands (H × M × S) | 1.3 × 0.8 × ? mm |
Technical data
| Beat rate | 18,000 vph (2.5 Hz) |
|---|---|
| Lift angle | — |
| Power reserve | 40 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | No |
|---|---|
| Date | Yes |
| Day | Yes |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | — |
|---|---|
| Height | 11.5 mm |
| Thickness | 0.13 mm |
| Length | 420 mm |
| Barrel diameter | 1.28 mm |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | LeCoultre |
| Year | — |
| Family | — |
| Clone of | — |
Related calibers
Documents
None
Updated 7 days ago · 0 revisions