SEIKO 5 SPORTS SRPL83K1 SKX REDUX AUTOMATIC MEN WATCH
SRPL83K1
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- Warranty 3 Years
The Seiko 5 Sports SRPL83K1 is a full SKX-series watch in its most straightforward form: a blue dial with a sunray finish, baton hour markers, and a unidirectional rotating bezel around a 42.5mm stainless steel case. No special edition, no anniversary framing — just the shape Seiko has been building since the SKX, with the blue dial doing the work.
Inside is Calibre 4R36, the automatic movement that winds itself from the motion of your wrist and shows both the day and the date. It can also be wound by hand, and holds roughly 41 hours when fully wound. The crystal is curved Hardlex, the case back is see-through so the movement stays visible, and the watch is rated to 100 metres. It comes on a stainless steel bracelet with a three-fold clasp.
At a Glance
- BrandSeiko
- Collection5 Sports SKX Series
- MovementCalibre 4R36 Automatic
- Case Size42.5mm
- Case Thickness13.4mm
- DialBlue, Sunray Finish
- GlassCurved Hardlex
- BezelUnidirectional Rotating
- CalendarDay & Date
- Power ReserveApprox. 41 Hours
- Water Resistance100m (10 BAR)
- BraceletStainless Steel, 22mm
Why You'll Love It
- A sunray finish on a blue dial. The surface catches light in bands as you turn your wrist, so the blue runs from near-navy in shadow to a clearly brighter tone in direct light.
- No battery. Calibre 4R36 winds itself from the motion of your wrist, shows the day and the date, and can be wound by hand when it has been sitting.
- Baton markers and broad hands, sized for legibility rather than decoration — the SKX layout has always prioritised reading the time at a glance.
- The see-through case back leaves the movement visible, which on an automatic is the part most owners never get to see.
- The unidirectional bezel turns one way only, so if it is knocked while you are timing something it shortens the reading rather than extending it.
- LumiBrite on the hands and hour markers, charged by light and readable in the dark without any battery drain.
- 100 metres of water resistance, which covers swimming and showering without a second thought.
- Blue is the version of this watch that reads as a choice rather than a default — distinct enough to notice, restrained enough to wear every day.
Perfect For
- Everyday Wear
- Swimming & Water Sports
- First Automatic Watch
- Mechanical Watch Collectors
- Weekend & Casual
- Travel
- Japanese Design
- Gift
Key Features
- Calibre 4R36 automatic movement — self-winding with manual winding available, 24 jewels, a power reserve of approximately 41 hours, day and date display and a stop second hand function.
- Blue dial with sunray finishing and baton hour markers.
- Unidirectional rotating bezel — for timing an interval from the moment you set it.
- LumiBrite on hands and hour markers — charged by light, legible in the dark.
- 42.5mm stainless steel case — 13.4mm thick and 46.0mm lug-to-lug, at a total weight of 187 grams.
- Curved Hardlex crystal over a see-through and screw case back.
- Stainless steel bracelet on a 22mm lug width, 205mm long, with a three-fold clasp and push button release.
- 100-metre water resistance and magnetic resistance of 4,800 A/m.
Technical Specifications
The Seiko 5 Sports SRPL83K1 is a 42.5mm automatic watch from the SKX series, powered by Calibre 4R36 with 24 jewels and a power reserve of approximately 41 hours, with a day and date display and a stop second hand function. The stainless steel case measures 13.4mm thick and 46.0mm lug-to-lug at a weight of 187 grams, with a unidirectional rotating bezel and a curved Hardlex crystal over a blue dial with sunray finishing, baton hour markers and LumiBrite on the hands and hour markers. It has a see-through and screw case back, a stainless steel bracelet on a 22mm lug width with a three-fold clasp and push button release, magnetic resistance of 4,800 A/m, and 100-metre water resistance.
| Model Number | SRPL83K1 |
| Case Material | Stainless Steel |
| Case Colour | Silver |
| Case Diameter | 42.5mm |
| Case Thickness | 13.4mm |
| Lug-to-Lug | 46.0mm |
| Weight | 187.0g |
| Bezel | Unidirectional Rotating |
| Glass | Curved Hardlex |
| Caseback | See-Through, Screw Case Back |
| Crown | Pull Out |
| Water Resistance | 100 Metres (10 BAR) |
| Magnetic Resistance | 4,800 A/m |
| Colour | Blue |
| Finish | Sunray |
| Markers | Batons |
| LumiBrite | Hands & Hour Markers |
| Hand Indicators | Hour, Minute, Seconds |
| Calendar | Day of the Week + Date |
| Material | Stainless Steel |
| Colour | Silver |
| Lug Width | 22mm |
| Length | 205.0mm |
| Clasp | Three-Fold with Push Button Release |
| Calibre | Seiko 4R36 |
| Type | Automatic with Manual Winding |
| Jewels | 24 |
| Display | Analogue, Three Hands |
| Functions | Day/Date Display, Stop Second Hand |
| Power Reserve | Approx. 41 Hours |
| Hand Winding | Yes |
Best Matched With
- White Oxford Shirt
- Grey Crewneck
- Dark Denim
- Tan Field Jacket
- Stone Chinos
- Navy Knitwear
- White Trainers
Frequently Asked Questions
Is this a diver's watch?
No, and it is worth being clear about it. The rotating bezel and the SKX case shape both come from Seiko's diving heritage, and the 100-metre rating covers swimming, snorkelling and showering comfortably. But Seiko gives this reference no diver's designation, and the crown pulls out rather than screwing down, so it should not be used for scuba diving. If you want a watch rated for diving, look to the Prospex collection.
What is the rotating bezel for?
Timing an interval. Line the bezel's zero marker up with the minute hand when you start, and the elapsed minutes can be read straight off the bezel afterwards. It turns in one direction only, so a knock can only make the reading longer than reality, never shorter — the safety principle behind every unidirectional bezel.
How does the automatic movement work?
A weighted rotor inside Calibre 4R36 turns as your wrist moves, winding the mainspring. Wearing it through a normal day keeps it running. You can also wind it by hand using the crown, which is the quickest way to start it from cold.
What happens if I do not wear it for a few days?
It stops. The power reserve is approximately 41 hours from a full wind, so a watch set down on Friday evening will usually have stopped by Sunday. Wind it by hand, reset the time, day and date, and carry on. This is normal for a mechanical watch and does no harm.
Can I swim and shower with it?
Yes. At 100 metres this handles swimming, snorkelling and showering without concern. Make sure the crown is pushed fully home first, rinse the watch in fresh water after the sea or a pool, and have the case seals checked at service intervals, since gaskets are what maintain the rating over the years rather than the case itself.
What does the sunray finish look like in person?
It is a brushed pattern radiating out from the centre of the dial, so light catches it in a band that sweeps across as you move your wrist. The dial never sits at one tone: it runs from a deep, almost navy blue in shadow to a clearly brighter blue in direct light, and shifts as you turn your wrist.
How does 42.5mm wear?
Substantially. This is a broad watch at 13.4mm thick and 187 grams on the bracelet, so it has real presence on the wrist. The 46.0mm lug-to-lug is the more useful figure for fit and is shorter than the diameter suggests, which keeps it wearable on medium wrists. Any City Chain outlet can put it on your wrist.
Can the bracelet be adjusted?
Yes. The bracelet is 205mm long as supplied, and links can be added or removed to size it. City Chain offers complimentary bracelet sizing at any outlet; bring your warranty book along for the service.
What can I see through the case back?
The movement itself — the balance wheel oscillating, the rotor turning as you move, the gear train running. It is the reason a see-through case back is worth having on a mechanical watch, and the easiest way to understand what you have bought.
Does a mechanical watch need servicing?
Yes, eventually. A mechanical movement runs on lubricated moving parts that wear over years of use, so a service every few years keeps it running to specification and is also when the case gaskets are replaced. City Chain can arrange servicing through Seiko's authorised service network — bring your warranty book.
What warranty does this watch come with?
The SRPL83K1 comes with a 3-year warranty when purchased from City Chain Singapore, an authorised Seiko retailer. Keep your warranty card and proof of purchase — both are required when submitting the watch for service.
Where can I see the rest of the range?
The full Seiko 5 line-up is in our Seiko 5 collection, and City Chain outlets across Singapore carry the range in store.
Why Buy from City Chain Singapore
- Authorised Retailer 100% genuine Seiko product
- 3-Year Warranty Covered on every purchase
- Bracelet Adjustment Complimentary sizing in store
- Free Shipping All orders within Singapore
Extra $10 OFF with min. $80 spend
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Extra $15 OFF with min. $210 spend
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Calibre Type: Automatic - Powered By The Movement Of The Wearer
Calibre Number: 4R36
Calibre Function: Analogue - 3 Hands
Power Reserve: Approx. 41 Hours
Display: Analogue
Case Material: Stainless Steel
Case Color: Silver
Case Diameter: 42.5mm
Case Length: 46.0mm
Case Thickness: 13.4mm
Water Resistance: 100 Metres
Glass: Curved Hardlex
Crown: Pull Out
Rotating Bezel: One Way
Dial Color: Blue
Dial Markers: Batons
Hand Indicators: Hour, Minute, Seconds
Calendar Indicators: Date, Day of the Week
Lumibrite: Hands & Hour Markers
Band/Bracelet: Bracelet - Stainless Steel
Band Color: Silver
Hand Winding: Yes
See-through Case Back: Yes
Delivery within Singapore | Order by 11AM
(Checkout options may vary depending on minimum order requirements)
• Free Standard Delivery (3 business days)
• Free Next Day Delivery
• Express Delivery at $30 (order by 2PM)
• Click & Collect (ready in 2–3 business days)
Weekend & Public Holiday Orders
Orders placed during this time will be processed on the next business day.
For online purchase, you can have bracelet or leather strap adjustments done at any City Chain store. Please bring along your warranty book for the service.
