Seiko 5 Sports SKX Sports Style vs Citizen Promaster Dive Eco-Drive
The Citizen Promaster Dive Eco-Drive has a 2 mm longer lug-to-lug than the Seiko 5 Sports SKX Sports Style (48 mm vs 46 mm).
The Citizen Promaster Dive Eco-Drive has a 1.5 mm larger case than the Seiko 5 Sports SKX Sports Style (44 mm vs 42.5 mm).
The Seiko 5 Sports SKX Sports Style has a 1.9 mm thicker case than the Citizen Promaster Dive Eco-Drive (13.4 mm vs 11.5 mm).
On our fit model the Seiko 5 Sports SKX Sports Style suits 6.5"–7.75" wrists and the Citizen Promaster Dive Eco-Drive 6.75"–8", so the Seiko 5 Sports SKX Sports Style is the better choice for a smaller wrist.
Lug widths differ (22 mm vs 20 mm), so straps don't swap.
At US retail the Citizen Promaster Dive Eco-Drive costs $100 more ($450 vs $350).
On your wrist
Seiko 5 Sports SKX Sports StyleIdeal fit
Citizen Promaster Dive Eco-DriveIdeal fit
Side by side
| Seiko 5 Sports SKX Sports Style | Citizen Promaster Dive Eco-Drive | |
|---|---|---|
| Reference | SRPD55 | BN0151-09L |
| Case diameter | 42.5 mm | 44 mm |
| Lug-to-lug | 46 mm | 48 mm |
| Thickness | 13.4 mm | 11.5 mm |
| Lug width | 22 mm | 20 mm |
| Water resistance | 100 m | 200 m |
| Movement | Seiko 4R36 (automatic) | Citizen E168 (solar) |
| Power reserve | 41 hours | — |
| Crystal | Hardlex | anti-reflective mineral |
| Style | Sport, Dive | Dive |
| Retail (US) | $350 | $450 |