| Brand | Seiko |

| Case | H557-5030 |

| Material | Stainless steel |

| Date | 01/1981 |

| Type | Analog-Digital |

| Bracelet | Z469 / Z 469 |

| Bracelet Material | Stainless steel |

| Crystal | ES2W74GN00 |

| Glass | |

| Movement | H557A |

| | 4001555 |

| Panel | 4510525 / 4510526 |

| Width | 30.7 mm |

| Height | 37.5 mm |

| Thickness | 7.3 mm |

| Lug size | 18.0 mm |

| Weight | 60 g |

| Functions | Time 1, Time 2, Seconds, Timer, Chrono, Alarm, Chime, Light, Day/Month, Day of Week, 24h/12h |

| Battery | SR920W / 371/370 |