Helson Shark Diver 45 Military Titanium vs Seiko Prospex Shogun Titanium (SPB191)
The Helson Shark Diver 45 Military Titanium and the Seiko Prospex Shogun Titanium (SPB191) are both titanium diver watches. This is a side-by-side of their case size, weight, titanium grade, movement, water resistance, and price, drawn from the verified specs in the Titanium Field Guide.
| HelsonShark Diver 45 Military Titanium | SeikoProspex Shogun Titanium (SPB191) | |
|---|---|---|
| Price | $1,195 | $1,200 |
| Case diameter | 45.0 mm | 43.5 mm |
| Thickness | – | 13.3 mm |
| Lug-to-lug | – | – |
| Water resistance | 2000 m | 200 m |
| Weight | – | 99 g (head) |
| Titanium grade | Titanium (grade undisclosed) | Titanium (grade undisclosed) |
| Surface treatment | Brushed titanium | Super-hard coating |
| Movement | Automatic | Automatic |
| Power reserve | 42 h | 70 h |
| Complications | Date | Date |
| Crystal | Sapphire | Sapphire, AR coated |
| Bracelet / strap | Titanium | Titanium bracelet |
| Origin | Switzerland | Japan |
| Confidence | Medium | High |
Full details: Helson Shark Diver 45 Military Titanium · Seiko Prospex Shogun Titanium (SPB191)
All Helson titanium watches · All Seiko titanium watches · How we verify & grade