Seiko Prospex SPB143 vs Tudor Black Bay 58 79030N
Specifications
Marked rows differ| Case | ||
| Case diameter | 40.5 mm | 39 mm |
|---|---|---|
| Thickness | 13.2 mm | 11.9 mm |
| Lug-to-lug | 47.6 mm | — |
| Water resistance | 200 m | 200 m |
| Movement | ||
| Movement | Automatic (mechanical self-winding, with hand-winding and hacking seconds) | Automatic (self-winding) |
| Caliber | Seiko 6R35 | Tudor MT5402 |
| Price | ||
| Launch MSRP | $1,200 | $3,575 |
| Details | ||
| Beat rate hz | 3 | — |
| Bezel | 120-click unidirectional rotating, brushed steel with white markings and lumed pip | Uni-directional rotating dive bezel with black anodized aluminum insert and gilded 60-minute dive scale |
| Bracelet | Stainless steel three-link bracelet, 20mm at lugs tapering to 18mm, with three-fold clasp | Satin-finished steel riveted 3-link bracelet (leather and fabric straps also offered) |
| Case material | Stainless steel with super-hard coating | Stainless steel |
| Chronometer cosc | — | true |
| Crystal | Domed sapphire with anti-reflective coating | Sapphire |
| Dial color | Charcoal grey with subtle sunburst finish | Black |
| Frequency vph | — | 28800 |
| Jewels | — | 27 |
| Lug width mm | 20 | 20 |
| Lume | LumiBrite | Luminescent hands and gilt-toned hour markers |
| Power reserve hours | 70 | 70 |
Sources
Verified · 6 referencesEvery spec on this page was independently checked against the sources below before publishing.