Pierce 170
Mechanical
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Notes
open face calibre
Breguet hairspring
during production periode crown mechanism modified (cf. Fig.1, 3)
Dimensions
| Width | 39.2 lignes (88.43 mm) |
|---|---|
| Height | 5.2 mm |
| Stem height | 0.5 mm |
| Hands (H × M × S) | 2.05 × 1.15 × 0.26 mm |
Technical data
| Beat rate | 18,000 vph (2.5 Hz) |
|---|---|
| Lift angle | — |
| Power reserve | 33 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | No |
|---|---|
| Date | No |
| Day | No |
| Hacking | No |
| Chronograph | No |
Mainspring
| GR code | GR5428 |
|---|---|
| Height | 1.8 mm |
| Thickness | 0.21 mm |
| Length | 420 mm |
| Barrel diameter | 15.5 mm |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Pierce |
| Year | — |
| Family | — |
| Clone of | — |
Related calibers
Documents
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Updated 7 days ago · 0 revisions