Excellent field watch for the money. The Ratio Quest Lewis & Clark RTQ015 wears very comfortably at 39.6 mm and only 9.5 mm thick. The green dial has a distinctive military look and excellent daytime readability, while the sapphire crystal and 100 m water resistance are impressive at this price. The olive NATO strap completes the rugged look perfectly. Fantastic value and a very satisfying purchase.
Seiko 5 Sports “Stealth Black” Automatic Diver Style
Bold. Tactical. Timeless.
The Seiko 5 Sports Stealth Black Automatic brings together military-inspired styling and dependable Japanese engineering in one versatile everyday watch. Designed with a full blacked-out case and dial configuration, this model delivers an aggressive modern look while staying true to Seiko’s legendary sports-watch DNA.
Powered by Seiko’s trusted automatic movement, the watch winds itself through natural wrist motion and also supports manual winding and hacking seconds for precise time setting. The matte black diver-style bezel, luminous hands and markers, and rugged NATO-style strap create a clean tactical aesthetic equally suited for casual wear, streetwear, or outdoor use.
The transparent exhibition caseback reveals the mechanical movement in action — a feature enthusiasts love and a reminder of the craftsmanship inside every Seiko automatic.
Whether you are a first-time mechanical watch buyer or a seasoned collector, this Seiko 5 Sports delivers exceptional value, reliability, and unmistakable presence on the wrist.
| Feature | Details |
|---|---|
| Brand | Seiko |
| Collection | Seiko 5 Sports |
| Movement | Automatic |
| Caliber | Seiko 4R36 |
| Jewels | 24 Jewels |
| Crystal | Hardlex |
| Water Resistance | 100M |
| Display | Analog |
| Functions | Hours, Minutes, Seconds, Day, Date |
| Strap Type | Nylon NATO Style Strap |
| Case Finish | Matte Black |
| Dial Color | Black |
| Bezel | Unidirectional Diver Style |
| Caseback | Exhibition / Transparent |
| Crown Position | 4 O’Clock |
| Style | Tactical / Sport / Diver Inspired |
| Case Diameter | 42.5mm |
| Case Thickness | 13.4mm |
| Lug to Lug | 46mm |
| Lug Width | 22mm |
| Weight | Approx. 95g–105g (varies by strap) |
| Movement Origin | Japan |
| Power Reserve | Approx. 41 Hours |