Description
| Collection | SEIKO Prospex |
| Reference | SPB121J1 |
| Calibre Type | Automatic – Powered By The Movement Of The Wearer |
| Function | Analogue – 3 Hands |
| Accuracy | +25 -15 seconds a day at normal temperature range (5°C and 35°C) |
| Power Reserve/Battery Life | Approx. 70 Hours Power Reserve |
| Calibre Number | 6R35 |
| Water Resistance | Diver’s 200 Metres |
| Case Material | Stainless steel |
| Case Size (Thickness) | 13.2mm |
| Case Size (Diameter) | 39.5mm |
| Lug-to-lug | 46.4mm |
| Case Color | Silver |
| Band/Bracelet | Strap – Leather |
| Band Color | Brown |
| Glass Material | Sapphire Crystal |
| Crown | Screw Down |
| Rotating Bezel | Inner ring |
| Dial Color | Green |
| Hand Indicators | Hour, Minutes, Seconds |
| Calendar Indicators | Date |
| Lumibrite | Hands & Hour Markers |
| Clasp | Three-fold clasp with push button release |
| Features | See-through case back Screw case back |

























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