Nummer: 01703
| Area : | Western Area |
| Sea area : | North Atlantic |
| Date of attack : | 10.04.1940 |
| Time of attack : | 01:36 |
| Nationality of U-boat : | German |
| U-boat : | U 37 |
| Commander : | Hartmann |
| Grid : | AE 9273 |
| presumed target type : | Tanker |
| presumed tonnage : | 9000 BRT |
| presumed result : | sunk |
| Number of torpedoes/mines : | 1 |
| Used weapon(s) : | Torpedo(es) |
| Date of observation : | 10.04.1940 |
| Nationality of target : | Swedish |
| Actual type of target : | Motor Tanker |
| Name of target : | Sveaborg |
| Year of launch : | 1931 |
| Actual tonnage : | 9076 BRT |
| Actual result : | sunk |
| Position of target : | 62.52n 07.34w |
