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Buren 1000A
Basic Information
| Name | Buren 1000A |
|---|---|
| Alternative Name | Dugena 1000A |
| Manufacturer | Buren Watch Company |
| Launch Year | 1957 |
| Caliber Family | Description 1000: without second 1000A: second with friction spring 1001: without second, date 1001A: second with friction spring, date 1005: second with double third wheel 1006: second with double third wheel, date Related calibers Buren 1000, Buren 1000A, Buren 1001, Buren 1001A, Buren 1005, Buren 1006 |
| Is COSC certified | No |
Timegrapher
Beat rate
18,000 bph
Frequency
2.5 Hz
Reference: healthy amplitude ≈ 270–315° fully wound (>200° at 24 h); beat error ideally < 0.5 ms.
Technical Details
| Lignes Dimensions | 12.5 ‴ |
|---|---|
| Dimensions | 28.5 mm |
| Height | 4.2 mm |
| Further Measures | Mounting Diameter (Dm): 28.15mm Stem height (T): 1.9mm Mounting Height (F): 1.5mm |
| Power Reserve | 42 hours |
| Frequency | 18,000 vph |
| Jewels | 33 |
Complications and Specifications
| Shape | Round |
|---|---|
| Complications |
|
| Shock Protection | Incabloc |
| Regulator Type | Pinned Regulator (or Index Regulator) |
| Movement Type | Automatic |
| Rotor Type | Micro-Rotor |
| Escapement Type | Swiss Lever |
| Control Type | Balance Wheel |
| Winding Type | Automatic (Rotor-Driven) |
| Setting Type | Stem Set (Crown Pull) |
Additional Information
| Hand Sizes | 1.50 x 0.90 x 0.22mm |
|---|---|
| Hand Count | 3 |
| Country Of Manufacture | Switzerland |
| Notes | Remarks: 1957-1962 first movement family with micro rotor selfwinding gear with direction switching by a pinion floating between two huge jewels (Fig.6) in 17-jewels variants one of these jewels substituted by polished steel disc Other data: balance staff: U2490 stem: W2403 mainspring / battery: 1.00 x 9.5 x 0.095mm Ranfft mentioned about this caliber: There are variants with this quantity of jewels 17, 21, 25, 33 |
| Signature | 1-2) ca. 1960: HYL, BAA, 1000A, Hamilton Watch Co., 663, Swiss, 17 Jewels; Incabloc 3-5) ca. 1960: BAA, G, 1000A, Dugena, 1000A, Swiss Made, 33 Jewels; Incabloc |
| Import Codes |
Compatible Parts
No parts linked yet for this caliber.
Metadata
| Created At | Sep 15, 2023 |
|---|---|
| Updated At | May 26, 2026, 4:43:58 AM |
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