SEIKO CHRONOGRAPH SSB399P1 QUARTZ MEN WATCH
SSB399P1
- Low stock - 3 items left
- Backordered, shipping soon
- 20% off in cart
- Warranty 3 Years
The Seiko Conceptual SSB399P1 is a black-dialled quartz chronograph built on a hard-coated stainless steel case — a surface treatment applied over the steel that raises hardness against the everyday marks a watch picks up from desks, doorframes and bag straps. It is the same 41.0mm case Seiko uses across this part of the Conceptual range, here in its coated form.
The dial carries a 60-minute stopwatch, a separate 24-hour hand, a small seconds display and a date, with LumiBrite on the hands and indexes so all of it stays legible in low light. Inside is Calibre 8T63, accurate to ±15 seconds per month with approximately three years from a battery. The case measures 12.3mm thick and 48.0mm lug-to-lug, has a screw case back and a Hardlex crystal, and is rated to 100 metres. Fully assembled the watch weighs 152 grams, so it has genuine presence on the wrist.
At a Glance
- BrandSeiko
- CollectionConceptual
- MovementCalibre 8T63 Quartz
- Case Size41.0mm
- DialBlack
- Case MaterialStainless Steel, Hard Coating
- GlassHardlex
- FunctionsChronograph, 24-Hour, Small Seconds, Date
- Chronograph60 Minutes, 1/5 Second
- Water Resistance100m (10 BAR)
- Lug Width22mm
- Weight152g
Why You'll Love It
- The hard coating is the reason to choose this reference. It sits over the stainless steel and raises surface hardness, so the case holds its finish better than bare steel through daily wear.
- ±15 seconds per month. Set it and forget it, where a mechanical chronograph would drift that much in a couple of days.
- A dial that earns its complexity — 60-minute chronograph, 24-hour hand, small seconds and date. Four indications, all of them useful.
- LumiBrite on the hands and indexes, so a busy dial stays readable in the dark without any power draw.
- 152 grams. This has real weight to it, which is what many buyers want from a chronograph and rarely get at 41mm.
- Three years from a battery, then a straightforward replacement. No winding, no charging, no routine.
- 22mm lug width, one of the most widely available strap sizes, so the watch is easy to re-strap if you want to change its character.
- 100 metres of water resistance, so rain and swimming are not a consideration.
Perfect For
- Everyday Wear
- Office & Boardroom
- First Chronograph
- Low-Maintenance Owners
- All-Black Styling
- Larger Wrists
- Strap Swappers
- Gift for Him
Key Features
- Calibre 8T63 quartz chronograph movement — accurate to ±15 seconds per month, with a battery life of approximately three years.
- Stopwatch measuring up to 60 minutes in 1/5-second increments — started, stopped and reset from the pushers either side of the crown.
- 24-hour hand — a separate indication running on a 24-hour cycle, alongside the main time display.
- Small seconds hand — a continuously running seconds display independent of the chronograph.
- Stainless steel case with hard coating — a surface treatment over the steel that raises hardness against everyday scuffing.
- LumiBrite on hands and indexes — Seiko's luminous compound charges under light and reads clearly in the dark without drawing any power.
- Date display — set from the crown.
- Hardlex crystal and screw case back — Seiko's own hardened mineral glass, in a screw-down case back that maintains the water resistance rating.
- Three-fold clasp with push button release, on a 22mm lug width.
- 100-metre water resistance — rated for swimming and recreational water activity.
Technical Specifications
The Seiko Conceptual SSB399P1 is a 41.0mm quartz chronograph powered by Calibre 8T63, accurate to ±15 seconds per month with a battery life of approximately three years. The stainless steel case carries a hard coating and measures 12.3mm thick and 48.0mm lug-to-lug at a total weight of 152 grams, with a Hardlex crystal and a screw case back. It features a black dial, LumiBrite on hands and indexes, a stopwatch measuring up to 60 minutes in 1/5-second increments, a 24-hour hand, a small seconds hand, a date display, a 22mm lug width and a three-fold clasp with push button release.
| Model Number | SSB399P1 |
| Case Material | Stainless Steel (Hard Coating) |
| Case Diameter | 41.0mm |
| Case Thickness | 12.3mm |
| Lug-to-Lug | 48.0mm |
| Lug Width | 22mm |
| Weight | 152g |
| Glass | Hardlex |
| Caseback | Screw Case Back |
| Water Resistance | 100 Metres (10 BAR) |
| Colour | Black |
| LumiBrite | Hands & Indexes |
| Hand Indicators | Hour, Minute, Seconds, 24-Hour |
| Calendar | Date |
| Lug Width | 22mm |
| Clasp | Three-Fold with Push Button Release |
| Calibre | Seiko 8T63 |
| Type | Quartz |
| Accuracy | ±15 seconds per month |
| Battery Life | Approx. 3 Years |
| Stopwatch | 60 Minutes, 1/5-Second Increments |
| Other Functions | 24-Hour Hand, Small Seconds, Date Display |
Best Matched With
- Charcoal Suit
- Black Field Jacket
- White Oxford Shirt
- Grey Knitwear
- Dark Denim
- Technical Outerwear
- Black Leather Belt
Frequently Asked Questions
What does the hard coating do?
It is a surface treatment applied over the stainless steel that raises the hardness of the outer layer, so the case resists the everyday scuffs a watch picks up in normal wear better than bare steel would. Because it is a surface treatment rather than a solid material, a hard enough impact against a sharp edge can still mark it. Avoid abrasives and solvents.
How do I use the chronograph?
The upper pusher starts and stops the timing, and the lower pusher resets it to zero once stopped. The stopwatch measures up to 60 minutes in 1/5-second increments, and the elapsed time is read from the sub-dials while the main hands continue showing the time of day.
Which hand is the small seconds and which is the chronograph?
The small seconds hand runs continuously on its own sub-dial and tells you the watch is working. The chronograph hand sits still at zero until you start the stopwatch. If you have owned a chronograph before and found a seconds hand parked and motionless, this is why — that is normal, not a fault.
What is the 24-hour hand for?
It runs on a 24-hour cycle rather than a 12-hour one, so it tells you at a glance whether the time shown is morning or evening. It is useful in low light, and for anyone who works to a 24-hour clock.
How accurate is it?
±15 seconds per month, which is the figure Seiko quotes for this movement. In practice that means adjusting it once or twice a year rather than weekly.
How long does the battery last?
Approximately three years. Running the chronograph frequently draws more power and can shorten that. When it needs replacing, bring it to any City Chain outlet rather than opening it yourself — the screw case back has to be resealed correctly or the watch loses its water resistance.
How does 41mm wear?
Larger than the diameter alone suggests. The lug-to-lug measurement is 48.0mm, which is long for a 41mm case, so the watch covers more of the wrist than the diameter implies — and at 152 grams it has considerable presence. If you prefer a chronograph that sits more discreetly, try it against a smaller reference before deciding. Any City Chain outlet can put both on your wrist.
Is Hardlex the same as sapphire?
No. Hardlex is Seiko's own hardened mineral glass. It resists shattering better than sapphire, but it scratches more easily — sapphire rates 9 on the Mohs hardness scale and mineral glass sits well below that. If a scratch-free crystal is your priority, Seiko fits sapphire to other references in the Conceptual range, including the SSB459P1.
Can I swim with it?
Yes. At 100-metre water resistance it handles swimming and recreational water activity. It is not a diver's watch and is not rated for scuba diving. Never operate the crown or the chronograph pushers while the watch is wet — that is the most common way water gets into a chronograph.
Can I change the band?
Yes. The lug width is 22mm, one of the most widely available sizes, so leather, rubber, mesh and steel bands all fit. Changing the band is the quickest way to shift a coated case between formal and casual wear.
How does this compare to the SSB397P1?
Both use the same 41.0mm case, the same Calibre 8T63 and the same black dial. The difference is the finish: the SSB397P1 is uncoated stainless steel in a silver finish, while this reference adds a hard coating over the steel. Treat them as two separate products rather than colourways — check the specification of each before deciding.
What warranty does this watch come with?
The SSB399P1 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.
Why Buy from City Chain Singapore
- Authorised Retailer 100% genuine Seiko product
- 3-Year Warranty Covered on every purchase
- Free Shipping All orders within Singapore
- Bracelet Adjustment Size it in-store
Extra $15OFF with min. $200 spend
Use Code: 15FORYOU
Extra $30OFF with min. $400 spend
Use Code: 30FORYOU
Movement
Caliber Number: 8T63
Movement Type: Quartz
Functions
24-hour hand
Date display
Case
Case Diameter: 41.0mm
Thickness: 12.3mm
Lug-to-lug: 48.0mm
Glass: Hardlex
Case Material: Stainless steel
Band Material: Stainless steel
LumiBrite: Lumibrite on hands and index(es)
Other
Water Resistance: 10 BAR
Weight: 152.0
Features
Screw case back
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.
