Seiko
Seiko 5 SNKL55K1 Automatic Watch 38mm Black Dial Stainless Steel
A 38 mm stainless-steel automatic watch with a 21-jewel 7S26 movement, black dial, day/date window and 30 m water resistance
- StyleCasual
- Series Name5
- MaterialStainless Steel
- MovementAutomatic
- ColorSilver
- AdjustableYes
- Automatic 21-jewel movement keeps time without a battery
- 37 mm stainless-steel case fits comfortably on most wrists
- Hardlex mineral crystal resists everyday scratches
- Day and date window includes a Spanish option
- 30 m water resistance handles splashes and brief immersion
Seiko 5 Automatic with 21 Jewels
The Seiko 5 SNKL55K1 is a men's casual watch powered by a Japanese automatic calibre 7S26 containing 21 jewels. A 37 mm stainless-steel case and matching bracelet with push-button deployment clasp sit on the wrist. Black analog dial with luminous hands and day/date window offers Spanish language option. Hardlex mineral crystal protects the face. Water resistant to 30 metres.
10.7 mm case handles daily motion
Self-winding rotor charges the mainspring through normal arm movement, so no battery changes are needed. The 21-jewel movement reduces friction for consistent timekeeping during extended wear. Stainless steel resists corrosion from sweat and hand-washing. Screw-down caseback and 30 metre rating guard against splashes and brief immersion, not swimming.
Upgrades battery quartz for mechanical ease
Replaces a basic quartz watch when the owner prefers mechanical tradition without manual winding. The 38 mm case diameter suits wrists that find larger divers oversized. Not for buyers who need a chronograph, higher water resistance for swimming, or a sapphire crystal. Deployment clasp simplifies on/off compared with traditional tang buckles.
Highlights
- Automatic 21-jewel movement keeps time without a battery
- 37 mm stainless-steel case fits comfortably on most wrists
- Hardlex mineral crystal resists everyday scratches
- Day and date window includes a Spanish option
- 30 m water resistance handles splashes and brief immersion
Specifications
| Brand | Seiko |
|---|---|
| Model | SNKL55K1 |
| Style | Casual |
| Series Name | 5 |
| Material | Stainless Steel |
| Movement | Automatic |
| Color | Silver |
| Adjustable | Yes |
| Shape | Round |
| Dial Color | Black |
| Display | Analog |
| Date | Date |
| Chronograph | No Chronograph |
| Band Material | Metal |
| Band Length | 7 |
| Band Width | 20 |
| Gender | Male |
| Age | Adult |
| Condition | New |
| Case Diameter | 38 |
| Case Thickness | 11 |
| Crystal | Mineral Crystal |
| Water-Resistant | 30m |
Questions about this item
Does the automatic movement generate any audible ticking or heat when worn all day?
The Caliber 7S26 mechanical movement runs silently on wrist motion and produces no noticeable heat during continuous wear.
What strap size must I already own if I want to swap the stainless steel bracelet?
The lug width is 20 mm, so any 20 mm spring-bar strap or bracelet will fit directly.
Will the 37 mm case and 10.7 mm thickness sit flush under the cuff of a vintage dress shirt?
At 37 mm diameter and 10.7 mm thick, the watch slides easily under most shirt cuffs without catching.
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