Seiko 5 Sports SKX Sports Style vs Orient Kamasu
The Orient Kamasu has a 1 mm longer lug-to-lug than the Seiko 5 Sports SKX Sports Style (47 mm vs 46 mm).
The Seiko 5 Sports SKX Sports Style has a 0.6 mm larger case than the Orient Kamasu (42.5 mm vs 41.9 mm).
The Seiko 5 Sports SKX Sports Style has a 0.6 mm thicker case than the Orient Kamasu (13.4 mm vs 12.8 mm).
Both suit the same wrists on our fit model (6.5"–7.75").
They share a 22 mm lug width, so straps swap between them.
At US retail the Orient Kamasu costs $230 more ($580 vs $350).
On your wrist
Seiko 5 Sports SKX Sports StyleIdeal fit
Orient KamasuIdeal fit
Side by side
| Seiko 5 Sports SKX Sports Style | Orient Kamasu | |
|---|---|---|
| Reference | SRPD55 | RA-AA0003R39B |
| Case diameter | 42.5 mm | 41.9 mm |
| Lug-to-lug | 46 mm | 47 mm |
| Thickness | 13.4 mm | 12.8 mm |
| Lug width | 22 mm | 22 mm |
| Water resistance | 100 m | 200 m |
| Movement | Seiko 4R36 (automatic) | Orient F6922 (automatic) |
| Power reserve | 41 hours | 40 hours |
| Crystal | Hardlex | sapphire |
| Style | Sport, Dive | Dive |
| Retail (US) | $350 | $580 |