Hamilton 12 Chronomatic (Buren 1281)
Mechanical
c. 1969
Self-winding (rotor)
Date
Chronograph
No photos yet
Notes
1969-
joint development of Hamilton-Buren, Breitling and Heuer
module Dubois-Depraz 8510 on modified Buren 1281
crown at 9h
micro rotor
double excenter regulator for curb pins and stud carrier
indirectly driven minute allows a low profile
(details cf. Buren 1320)
Dimensions
| Width | 31 lignes (69.93 mm) |
|---|---|
| Height | 7.7 mm |
| Stem height | — |
| Hands (H × M × S) | — |
Technical data
| Beat rate | 21,600 vph (3 Hz) |
|---|---|
| Lift angle | — |
| Power reserve | 42 h |
| Jewels | — |
| Shock protection | — |
| Mobile stud carrier | No |
Complications
| Self winding | Rotor |
|---|---|
| Date | Yes |
| Day | No |
| Hacking | No |
| Chronograph | Yes |
Mainspring
| GR code | — |
|---|---|
| Height | 10.5 mm |
| Thickness | 0.11 mm |
| Length | — |
| Barrel diameter | 1.6 mm |
Overview
| Type | Mechanical |
|---|---|
| Manufacturer | Hamilton |
| Year | c. 1969 |
| Family | — |
| Clone of | — |
Documents
None
Updated 7 days ago · 0 revisions