# Seiko 5 Sports Automatic 40mm Review by A.I. WatchMetrics

## Watch Summary
The Seiko 5 Sports Automatic 40mm is a rugged yet compact field watch suited for casual and adventurous wearers, featuring a 39.9mm stainless steel case with brushed finishing, a textured black dial with applied indices and strong Lumibrite lume for low-light legibility, fixed bezel, nylon strap, and the hacking/hand-wind Caliber 4R36 automatic movement delivering 41 hours of power reserve and reliable daily performance.

## Overall Watch Rating: 6.5/10.0

**Versatility Metric (8.5/10.0)** - Highly adaptable across casual, sports, adventure, and tool scenarios, matching the everyday flexibility of an Omega Railmaster at a fraction of the cost.

**Movement Metric (8.1/10.0)** - The 4R36 offers dependable accuracy, hacking, and hand-winding superior to many entry-level Chinese automatics and on par with ETA 2824 clones.

**Dials & Design Metric (8.2/10.0)** - Crisp textured dial, excellent proportions, and sporty field aesthetics provide standout legibility and appeal akin to modern Hamilton Khakis.

**History & Innovation Metric (8.0/10.0)** - Rooted in the iconic Seiko 5 legacy since 1963 with incremental upgrades like hacking seconds, it benchmarks against established workhorse lines from Orient or Citizen.

**Material Metric (7.5/10.0)** - Robust stainless steel paired with durable Hardlex crystal withstands daily abuse better than fashion steels but trails sapphire-equipped Tudors.

**Functions Metric (6.5/10.0)** - Essential timekeeping with date, solid lume, and 100m water resistance meets standard expectations like those in a Timex Ironman but lacks extras.

**Brand Metric (5.4/10.0)** - Seiko occupies reliable mid-tier territory with broad enthusiast appeal, comparable to Hamilton's accessible mechanical offerings.

**Complications Metric (4.0/10.0)** - Simple date window adds basic utility but pales against multifunction pieces from Tissot.

**Rarity Metric (2.6/10.0)** - Mass-produced accessibility keeps it common on wrists and markets, unlike limited-run microbrands.

## Total Performance Score (TPS): 4.5

## WM Collector Grade: B-

## Performance Insights: Shines in versatility, movement, and design for everyday reliability, delivering fair value significantly under its $1,200 implied price despite modest rarity and complications.

## TPS Interpretation: Fair Value: The watch matches reliable functionality and aesthetics expected at its modest price with room for premium upgrades.

## Watch Data
[https://www.seikowatches.com/content/dam/seiko-global/products/5sports/SRPH95/SRPH95K1_gallery_01.jpg] - [Front view]; [https://www.seikowatches.com/content/dam/seiko-global/products/5sports/SRPH95/SRPH95K1_gallery_03.jpg] - [Back view]; [https://www.fratellowatches.com/wp-content/uploads/2022/10/Seiko-5-Sports-SRPH93K1-lume.jpg] - [Lume shot]; [Nickname] - [Seiko 5 Field 40mm]; [Brand] - [Seiko]; [Model] - [5 Sports SRPH95]; [Country] - [Japan]; [Product Link] - [https://www.seikowatches.com/global-en/products/5sports/srph95]; [reviewLink] - []; [# Secondary] - [0]; [watchDescription] - [Compact 40mm stainless steel field watch with textured dial, nylon strap, automatic movement, and 100m water resistance for versatile daily wear]; [caseWidth] - [39.9]; [lugToLugLength] - [46.4]; [thickness] - [12.1]; [lug] - [20]; [waterResist] - [100]; [powerReserve] - [41]; [beatFrequency] - [21600]; [lume] - [Lumibrite on hands and indices]; [jewels] - [24]; [caseMaterial] - [Stainless Steel]; [watchGlass] - [Hardlex]; [Bezel] - [Fixed]; [caseback] - [Solid]; [Crown] - [Standard push-pull]; [Strap] - [Nylon NATO]; [Shape] - [Round]; [Dial] - [Textured black]; [Seconds] - [Yes]; [Date] - [Yes]; [Calendar] - [No]; [Chiming] - [No]; [Chronograph] - [No]; [Compass] - [No]; [dateCompilation] - [Yes]; [DigitalDisplay] - [No]; [Dress] - [No]; [Field] - [Yes]; [GMT] - [No]; [Mechanical Alarm] - [No]; [Moonphase] - [No]; [Tourbillon] - [No]; [worldTimer] - [No]; [powerReserveIndicator] - [No]; [Diver] - [No]; [Pilot] - [No]; [racing] - [No]; [Skeleton] - [No]; [Vintage] - [No]; [StyleFormal] - [No]; [StyleCasual] - [Yes]; [StyleSports] - [Yes]; [StyleTravel] - [No]; [StyleAdventure] - [Yes]; [StyleCollector] - [Yes]; [StyleTool] - [Yes]; [StyleStatement] - [No]; [StyleVintage] - [No]; [StyleSmart] - [No]; [StyleCustom] - [No]; [TPS_new] - [4.5]; [TPSgrade] - [B-]; [TPSimpliedPrice] - [1200];

**A.I. WatchMetrics Review v37.4 Grok 4 Fast. December 19, 2025.**