Seiko 5 Sports SRPD61 Automatic Green Dial Mens Watch vs Seiko 5 Sports SRPE55 Automatic Watch
Both watches run the same Seiko 4R36 automatic movement with 41 hours of power reserve, so the real choice is size, crystal and style. The SRPD61 is the larger, bolder dive-style watch with a green bezel and mineral crystal; the SRPE55 is a slimmer 40mm everyday watch with Hardlex crystal. The SRPD61's lowest recent price was $245.00 on October 29, 2026, against a high of $300.00 on October 30, 2026; no current price was given for the SRPE55, so compare live store prices before deciding.
Ask our shopping agent
Seiko 5 Sports SRPD61 Automatic Green Dial Mens Watch
5Choose the Seiko 5 Sports SRPD61 if you want a 42.5mm dive-style watch with a rotating green bezel, a green sunray dial and 100m water resistance.
Pros
- Green sunray dial and matching bezel stand out
- Rotating bezel adds dive-watch function
- 100m water resistance suits swimming and daily wear
- Reviewers call it comfortable and not bulky despite the size
- Day and date display at 3 o'clock
Cons
- 42.5mm case is large for slim wrists
- Mineral crystal scratches more easily than sapphire
What separates them
| Seiko 5 Sports SRPD61 Automatic Green Dial Mens Watch | Seiko 5 Sports SRPE55 Automatic Watch | |
|---|---|---|
| Case diameter | 42.5 mm | 40.0 mm |
| Case thickness | Not stated; thicker dive-style case | 11.5 mm |
| Crystal | Mineral | Hardlex |
| Bezel | Unidirectional rotating green bezel | Fixed smooth bezel |
| Dial | Green sunray with Lumibrite hands and markers | Black dial, no lume details given |
| Water resistance | 100 m | 10 bar (100 m) |
| Movement | Caliber 4R36, 24 jewels, 21,600 vph, ~41 h reserve | Caliber 4R36, 24 jewels, ~41 h reserve, manual winding |
| Lug width | 22 mm |
Price history
$300.00$187.99
- Seiko 5 Sports SRPD61 Automatic Green Dial Mens Watch: lowest $245.00 on Oct 29 at Michael Szwed Jewelers; $300.00 on Oct 30.
- Seiko 5 Sports SRPE55 Automatic Watch: lowest $187.99 on Oct 29.
Prices at every store
Seiko 5 Sports SRPD61 Automatic Green Dial Mens Watch
- WalmartCheck price at Walmart
- eBayCheck price at eBay
- Michael Szwed JewelersCheck price at Michael Szwed Jewelers
Seiko 5 Sports SRPE55 Automatic Watch
- Forever JewelryCheck price at Forever Jewelry
Specs compared
| Spec | Seiko 5 Sports SRPD61 Automatic Green Dial Mens Watch | Seiko 5 Sports SRPE55 Automatic Watch |
|---|---|---|
| Case material | Stainless Steel | Stainless steel |
| color | Blue | — |
| size | 42.5 mm | — |
| Brand | Seiko | — |
| Gender | Male | — |
| Watch movement | Automatic | — |
| Watch style | Sport | — |
| Dial color | Black | — |
| Band material | Stainless Steel | — |
| Watch crystal material | Mineral | — |
| Resists water |
Questions and answers
- Which is better for small wrists?
- The SRPE55. Its 40mm case, 11.5mm thickness and 44.6mm lug-to-lug fit smaller wrists better than the 42.5mm SRPD61.
- Do they use the same movement?
- Yes. Both use the Seiko Caliber 4R36 with 24 jewels and about 41 hours of power reserve. The SRPE55 is listed with manual winding; the SRPD61 spec sheet does not mention it.
- Is the SRPD61 worth the extra over the SRPE55?
- Only if you want the rotating bezel and green dial. The SRPD61's lowest recent price was $245.00 on October 29, 2026, but no SRPE55 price was given, so check both live before deciding.
- Which has the better crystal?
- The SRPE55's Hardlex is more scratch resistant than the SRPD61's mineral crystal. Neither is sapphire.
- Can I swim with either watch?
- Yes. Both are rated to 100m (10 bar), which covers swimming and snorkeling but not scuba diving.
- Which lasts longer?
- Both should last similarly since they share the 4R36 movement. The SRPE55 has the edge on scratch resistance thanks to Hardlex.