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AS 1200
Basic Information
| Name | AS 1200 |
|---|---|
| Manufacturer | AS |
| Launch Year | 1945 |
| Caliber Family | Description 1200, 1247, 1288, 1317: 10.5" 1201, 1219, 1248, 1308, 1576: 11.5" 1230: 11.5" , date hand 1355, 1355N: 10.5" , day, date 1356, 1356N, 1644: 11.5" , day, date 1363, 1378, 1378N, 1670: 11.5" , date Related calibers AS 1200, AS 1201, AS 1219, AS 1230, AS 1247, AS 1248, AS 1288, AS 1308, AS 1317, AS 1355, AS 1355N, AS 1356, AS 1356N, AS 1363, AS 1378, AS 1378N, AS 1576, AS 1644, AS 1670 |
| Is COSC certified | No |
Timegrapher
Beat rate
18,000 bph
Frequency
2.5 Hz
Lift angle
52 degrees
Reference: healthy amplitude ≈ 270–315° fully wound (>200° at 24 h); beat error ideally < 0.5 ms.
Technical Details
| Lignes Dimensions | 10.5 ‴ |
|---|---|
| Dimensions | 23.7 mm |
| Height | 3.5 mm |
| Further Measures | Mounting Diameter (Dm): 23.3mm Stem height (T): 1.7mm Mounting Height (F): 1.4mm |
| Power Reserve | 45 hours |
| Frequency | 18,000 vph |
| Jewels | 17 |
| Lift Angle | 52 degrees |
Complications and Specifications
| Shape | Round |
|---|---|
| Complications |
|
| Shock Protection | Incabloc |
| Regulator Type | Pinned Regulator (or Index Regulator) |
| Movement Type | Manual |
| Escapement Type | Swiss Lever |
| Control Type | Balance Wheel |
| Winding Type | Stem Winding (Crown) |
| Setting Type | Stem Set (Crown Pull) |
Additional Information
| Hand Sizes | 1.30 x 0.70 / 0.22mm |
|---|---|
| Hand Count | 3 |
| Country Of Manufacture | Switzerland |
| Notes | Remarks: differences not known between 1200, 1247, 1288, 1317 Other data: balance staff: U3059 / U1509 / U3280 screw balance, collet 0.5mm / 0.6mm / ring balance stem: W1229 mainspring / battery: Zf1309, 1.60 x 9.0 x 0.10 x 290mm balance staff ronda: 5229 (10,5) balance staff ronda: 5230 (10,5) balance staff ronda: 293 (10,5-11,5) balance staff ronda: 165 (10,5-11,5) balance staff ronda: 3253 (10,5-11,5) stem ronda: 34 (10,5) stem ronda: 1053 (10,5) Mainspring: 1.600 x 9.000 x 0.100 x 300.000 mm Ranfft mentioned about this caliber: There are variants with this quantity of jewels 15, 17 |
| Signature | 1-2) ca. 1945: Mulco S.A., Swiss, 15 Jewels - AS 3) ca. 1955: Remova, Ancre, Swiss, 15 Jewels; Incabloc |
Compatible Parts
1574 other caliber(s) share compatible parts with this caliber.
104 compatible part(s) available — Supporter feature.
Metadata
| Created At | Sep 15, 2023 |
|---|---|
| Updated At | Apr 23, 2025, 11:30:57 PM |
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