![Couple of questions concerning Longines 990.1 caliber - Watch Repairs Help & Advice - Watch Repair Talk Couple of questions concerning Longines 990.1 caliber - Watch Repairs Help & Advice - Watch Repair Talk](https://www.watchrepairtalk.com/uploads/monthly_2019_02/1634205516_PC200574(1024x768).jpg.7bb3dd7d2bf01ea303e7962f38f76566.jpg)
Couple of questions concerning Longines 990.1 caliber - Watch Repairs Help & Advice - Watch Repair Talk
![N.O.S. LONGINES AUTOMATIC BLUE Vintage Swiss automatic watch Cal. L990.1 Ref. 4391 *** NEW OLD STOCK *** N.O.S. LONGINES AUTOMATIC BLUE Vintage Swiss automatic watch Cal. L990.1 Ref. 4391 *** NEW OLD STOCK ***](https://watches83.com/67145-thickbox_default/nos-longines-automatic-blue-vintage-swiss-automatic-watch-cal-l9901-ref-4391-new-old-stock-.jpg)
N.O.S. LONGINES AUTOMATIC BLUE Vintage Swiss automatic watch Cal. L990.1 Ref. 4391 *** NEW OLD STOCK ***
![Couple of questions concerning Longines 990.1 caliber - Watch Repairs Help & Advice - Watch Repair Talk Couple of questions concerning Longines 990.1 caliber - Watch Repairs Help & Advice - Watch Repair Talk](https://www.watchrepairtalk.com/uploads/monthly_2019_02/1792524656_PC200571(1024x768).jpg.ff075567fcce84b1b996902fbe661ef4.jpg)
Couple of questions concerning Longines 990.1 caliber - Watch Repairs Help & Advice - Watch Repair Talk
![Couple of questions concerning Longines 990.1 caliber - Watch Repairs Help & Advice - Watch Repair Talk Couple of questions concerning Longines 990.1 caliber - Watch Repairs Help & Advice - Watch Repair Talk](https://www.watchrepairtalk.com/uploads/monthly_2019_02/990.jpg.45ab1e0b70d379857bbc50bd6ed88df0.jpg)