Seiko Prospex SPB451J1 Technical Specifications
| Feature | Specification Details |
|---|---|
| Model Reference | Seiko Prospex SPB451J1 (1965 Heritage Diver’s Re-interpretation) [citychain.com.sg] |
| Movement Type | In-house Calibre 6R55 Automatic (Manual winding capability) [watches.ae] |
| Power Reserve | ~72 Hours (3 Full Days) [watches.ae] |
| Factory Accuracy | \(+25\) to \(-15\) seconds per day |
| Water Resistance | Diver’s 300 Meters (1,000 Feet) |
| Case Dimensions | 40.0mm Diameter \(\times \) 13.0mm Thickness \(\times \) 46.4mm Lug-to-Lug |
| Lug Width | 20mm |
| Total Weight | 168.0 grams |
| Case / Band Material | Stainless steel with DiaShield super-hard scratch-resistant coating |
| Crystal | Curved sapphire crystal with inner anti-reflective coating |
| Dial Color | Scuba Blue (Sunray finish) |
| Bezel Type | Unidirectional rotating diving bezel with dark blue insert |
| Clasp Type | Three-fold deployant with safety lock, push-button release, and wetsuit extender |
| Luminosity | Lumibrite on hands, hour markers, and bezel pip |
| Magnetic Resistance | 4,800 A/m |
| Jewel Count | 24 Jewels |
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