Seiko
Seiko 5 Sports SSK025K1 Black Dial Automatic 100M Men's Watch
Stainless steel automatic watch with 24-jewel 4R34 calibre, curved Hardlex crystal, leather strap and 100 m water resistance
- StyleSports
- MaterialStainless Steel
- MovementAutomatic
- ShapeRound
- Dial ColorBlack
- Dial MarkersIndex With Numbers At 1, 2, 4, 5, 6, 7, 8, 9, 10, 11 & 12 O'
- Automatic Caliber 4R34 movement powers the watch without a battery
- 24 jewels reduce friction for smooth long-term operation
- 100 metre water resistance suits swimming and snorkelling
- Stainless steel case with curved Hardlex crystal protects the dial
- Leather strap and buckle clasp give a secure comfortable fit
Seiko 5 Sports Automatic Field Watch
The Seiko 5 Sports SSK025K1 is a men's sports watch built for daily wear and outdoor activity. Its stainless steel case houses the automatic Caliber 4R34 movement with 24 jewels, removing the need for battery changes. A black dial features index markers with numerals at every hour position for clear, quick reading. Water resistance is rated to 100 metres, suitable for swimming and snorkelling.
Upgrade from Quartz or Entry Mechanical
Moving from a battery-powered quartz watch eliminates regular cell replacements and adds the mechanical character of a self-winding movement. The 4R34 calibre provides a date complication and 24-jewel construction for smoother gear-train operation than basic calibres. The jump is worthwhile when you want a reliable tool watch with a leather strap that develops patina over time, rather than a disposable fashion piece.
Suits Daily Wearers Wanting Mechanical Simplicity
This model fits buyers who prefer a single-crown, no-date-adjustment-hassle automatic with 100-metre water resistance and a comfortable leather strap. The fixed bezel and curved Hardlex crystal keep the profile clean for office or weekend use. Buyers needing a GMT hand, screw-down crown, bracelet option, or higher water rating for serious diving should look at other configurations.
Highlights
- Automatic Caliber 4R34 movement powers the watch without a battery
- 24 jewels reduce friction for smooth long-term operation
- 100 metre water resistance suits swimming and snorkelling
- Stainless steel case with curved Hardlex crystal protects the dial
- Leather strap and buckle clasp give a secure comfortable fit
Specifications
| Brand | Seiko |
|---|---|
| Style | Sports |
| Material | Stainless Steel |
| Movement | Automatic |
| Shape | Round |
| Dial Color | Black |
| Dial Markers | Index With Numbers At 1, 2, 4, 5, 6, 7, 8, 9, 10, 11 & 12 O'Clock |
| Display | Analog |
| Date | Date |
| Band Material | Leather |
| Fastener | Buckle Clasp |
| Gender | Male |
| Condition | New |
| Bezel | Fixed Bezel |
| Case Back | Pull Out Crown |
| Case Material | Stainless Steel |
| Case Thickness | 39.40 mm |
| Crystal | Curved Hardlex Crystal |
| Water-Resistant | 100m |
| Special Features | Curved Hardlex Crystal,Buckle Clasp,Date Display,Pull Out Crown |
Questions about this item
What case diameter and lug width does the SSK025K1 have so I can choose a compatible leather strap?
The stainless-steel case measures 39.40 mm across; the supplied leather strap uses a buckle clasp, so match the lug width when selecting a replacement.
How do I set the time and date on the 4R34 automatic movement without damaging the crown?
Unscrew the pull-out crown to the first position for date correction and the second for time setting; push and screw it back down fully to restore 100 m water resistance.
When will the Curved Hardlex crystal or automatic movement need professional service?
Hardlex resists daily scratches but should be inspected if cracked; the 4R34 caliber with 24 jewels typically requires a full overhaul every three to five years.
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