Seiko 21D
Description
This is a nice ladies' watch form caliber of a good quality from Japan. It uses a large Glucycur balance with two legs, a Diashock shock protection system and the anchor wheel runs in a chaton with an unidentified shock protection with an omega-shaped spring.
Technical data
| Manufacturer: | Seiko |
| Caliber: | 21D |
| Size: | 6 3/4 x 8''' |
| A/h: | 19800 |
| Number of jewels: | 17 |
| Escapement: | Pallet lever |
| Balance types: |
Glucydur anular balance |
| Shock protection(s): |
Diashock (Seiko) |
| Balance bearing / direction hairspring: | Counterclockwise |
| Moveable stud: | yes |
| Adjust mechanism: | Hairspring key |
| Construction: |
|
| References: |
Flume: (K3 -) |
Usage gallery
Seiko ladies' watch