SEIKO SELECTION HFL001P1 SPORTS "EDO PURPLE" 145TH ANNIVERSARY LIMITED EDITION DIGITAL MEN WATCH
HFL001P1
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- Warranty 3 Years
In 1982 Seiko built a digital watch that changed modes by turning its bezel. It was called the Rotocall, the mechanism was a rotary switch, and Seiko notes that it found a following among astronauts. The Seiko HFL001P1 brings that idea back for the company's 145th anniversary — the bezel is still the control, and turning it still moves you through the functions.
Seiko was founded in 1881, and the anniversary collection is split into three design themes. This reference belongs to Series 3, built around Edo-murasaki — Edo purple — which Seiko uses to mark the traditions carried from ancient Edo through to modern-day Tokyo. Here it appears as a purple aluminium bezel set against a black case and bracelet, on a 37.0mm digital watch that runs a 100-hour chronograph timing to 1/100th of a second, an alarm, a timer, a second time zone and a calendar programmed to 2074.
At a Glance
- BrandSeiko
- CollectionSelection
- Edition145th Anniversary, 4,000 Pieces
- MovementCalibre A824 Quartz
- DisplayDigital
- Case Size37.0mm
- Case Thickness10.6mm
- BezelPurple Aluminium, Rotating
- Case FinishBlack, Hard Coating
- Battery LifeApprox. 3 Years
- Water Resistance100m (10 BAR)
- BraceletBlack Stainless Steel, 20mm
Why You'll Love It
- The bezel is the interface. Rather than cycling through modes by pressing a button repeatedly, you turn the bezel — the idea Seiko introduced on the 1982 Rotocall and has revived here.
- A chronograph that runs to 100 hours and resolves to 1/100th of a second. That is a genuinely wide range for a wristwatch, from a sprint split to a four-day event.
- Edo purple against black. The anniversary colour appears on the aluminium bezel alone, which keeps the rest of the watch wearable rather than turning it into a novelty.
- A limited run of 4,000 pieces, with LIMITED EDITION engraved on the case back.
- 37.0mm across and only 10.6mm thick, at 108 grams. This is a compact, light watch that sits flat under a cuff.
- Internal LED illumination, so the display is readable in the dark at the press of a button rather than needing to be charged by light first.
- The full auto calendar is programmed through to 31 December 2074 — no adjusting for short months for the next fifty years.
- Three years of battery life with a warning function that tells you when it is running down, rather than simply stopping.
- An alarm, a 100-minute timer and a dual-time function alongside the chronograph, all reached from the same bezel.
Perfect For
- Everyday Wear
- Digital Watch Collectors
- Limited Edition Collectors
- Seiko Collectors
- Retro & Reissue Designs
- Travel & Dual Time
- Smaller Wrists
- Milestone Gift
Key Features
- Seiko 145th Anniversary Limited Edition — limited to 4,000 pieces, with LIMITED EDITION engraved on the case back.
- Rotary switch — the Rotocall mechanism, which changes modes with a turn of the bezel.
- Chronograph up to 100 hours in 1/100 second increments, with a counter function alongside it.
- Alarm function (single-time alarm) and a timer function running up to 100 minutes in 1-minute increments.
- Dual-time function — a second time zone held alongside the main display.
- Full auto calendar — programmed until 31 December 2074.
- Internal LED illumination and a battery life warning function.
- Calibre A824 quartz — accurate to ±20 seconds per month, with a battery life of approximately 3 years.
- Purple aluminium rotating bezel on a hard-coated stainless steel case — 37.0mm across, 10.6mm thick and 43.5mm lug-to-lug, at 108 grams.
- Black stainless steel bracelet on a 20mm lug width, with a three-fold clasp and push button release.
- 100-metre water resistance behind a Hardlex crystal and a screw case back.
Technical Specifications
The Seiko HFL001P1 is a 37.0mm digital quartz watch released as a Seiko 145th Anniversary Limited Edition of 4,000 pieces, based on the 1982 Rotocall. It is powered by Calibre A824, accurate to ±20 seconds per month with a battery life of approximately 3 years. The hard-coated stainless steel case measures 10.6mm thick and 43.5mm lug-to-lug at a weight of 108 grams, with a purple aluminium rotating bezel, a Hardlex crystal and a screw case back engraved LIMITED EDITION. Functions include a rotary switch, a counter function, a chronograph running to 100 hours in 1/100 second increments, a single-time alarm, a timer to 100 minutes in 1-minute increments, a full auto calendar to 31 December 2074, a dual-time function, a battery life warning and internal LED illumination. It has a black stainless steel bracelet on a 20mm lug width with a three-fold clasp and push button release, and 100-metre water resistance.
| Model Number | HFL001P1 |
| Case Material | Stainless Steel with Hard Coating |
| Case Diameter | 37.0mm |
| Case Thickness | 10.6mm |
| Lug-to-Lug | 43.5mm |
| Weight | 108.0g |
| Bezel | Purple Aluminium, Rotating |
| Glass | Hardlex Crystal |
| Caseback | Screw Case Back, Limited Edition Engraving |
| Water Resistance | 100 Metres (10 BAR) |
| Display | Digital |
| Dial Colour | Black |
| Mode Selection | Rotary Switch (Turn Bezel) |
| Chronograph | Up to 100 Hours, 1/100 Second Increments |
| Timer | Up to 100 Minutes, 1-Minute Increments |
| Alarm | Single-Time Alarm |
| Calendar | Full Auto Calendar to 31 December 2074 |
| Second Time Zone | Dual-Time Function |
| Illumination | Internal LED |
| Other | Counter Function, Battery Life Warning |
| Material | Stainless Steel |
| Colour | Black |
| Lug Width | 20mm |
| Clasp | Three-Fold with Push Button Release |
| Calibre | Seiko A824 |
| Type | Quartz |
| Accuracy | ±20 seconds per month |
| Battery Life | Approx. 3 Years |
| Limited Edition | 4,000 Pieces |
| Anniversary Series | Seiko 145th Anniversary, Series 3 |
| Case Back Marking | Limited Edition Engraving |
Best Matched With
- Black Crewneck
- Grey Hoodie
- Dark Denim
- Technical Outerwear
- Black Chinos
- White Trainers
- Nylon Bomber
Frequently Asked Questions
What is the Rotocall?
A Seiko digital watch from 1982 whose defining feature was the rotary switch — a mechanism that let the wearer change modes by turning the bezel rather than pressing through them. Seiko notes that the original found a following among astronauts. This reference is based on that design.
How does the rotary switch work?
You turn the bezel to move between the watch's modes — chronograph, timer, alarm, dual time and so on — instead of cycling through them with a button. It is a faster way of getting to the function you want, and the reason the original stood out in 1982.
What is the Seiko 145th anniversary, and why purple?
Seiko was founded in 1881, which makes 2026 its 145th year. The anniversary collection is split into three series, each with its own theme — gold accents, Seiko Blue, and Edo purple. This watch belongs to the third, and Seiko describes Edo-murasaki as reflecting the traditions passed on from ancient Edo to modern-day Tokyo and the spirit of creativity.
How far does the chronograph go?
Up to 100 hours, measured in increments of 1/100th of a second. That covers a sprint at one end and a multi-day event at the other, which is a wider range than most chronographs offer. A separate counter function sits alongside it.
What is the difference between the timer and the alarm?
The timer counts down from a duration you set, up to 100 minutes in 1-minute steps — useful for anything with a fixed length. The alarm is a single-time alarm, meaning it sounds at a specific clock time rather than after an interval.
Can I read it in the dark?
Yes. The watch has internal LED illumination, so the display lights at the press of a button. Unlike a luminous dial it does not need to be charged by light first, so it works just as well after a full day indoors.
Will I ever need to adjust the date?
Not for short months or leap years. The full auto calendar is programmed through to 31 December 2074, so it handles month lengths and leap years on its own. You will still need to set it when the battery is changed.
How long does the battery last?
Approximately three years. There is also a battery life warning function, so the watch signals when the battery is running down rather than simply stopping one morning. City Chain can replace the battery at any outlet.
How accurate is it?
Seiko states ±20 seconds per month for Calibre A824. In practice that means checking it a few times a year rather than weekly.
Can I swim and shower with it?
Yes. At 100 metres this handles swimming, snorkelling and showering without concern, though Seiko gives it no diver's designation, so it should not be used for scuba diving. Avoid operating the buttons or turning the bezel while it is submerged, rinse it in fresh water after the sea or a pool, and have the case seals checked when the battery is replaced.
How does 37mm wear?
Compactly. At 37.0mm across, 10.6mm thick and 108 grams this is a small, light watch by current standards, and the 43.5mm lug-to-lug keeps it well within the width of most wrists. It suits smaller wrists and sits flat enough to go under a cuff. Any City Chain outlet can put it on your wrist.
Can the bracelet be adjusted?
Yes. Links can be added or removed to size it, and the three-fold clasp opens on a push button release rather than a pin buckle. City Chain offers complimentary bracelet sizing at any outlet; bring your warranty book along for the service.
What warranty does this watch come with?
The HFL001P1 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
- Bracelet Adjustment Complimentary sizing in store
- Free Shipping All orders within Singapore
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Caliber Number: A824
Movement Type: Quartz
Precision: ±20 seconds per month
Battery life: Approx. 3 years
Rotary switch
Counter Function
Chronograph up to 100 hours in 1/100 second increments
Alarm function (single-time alarm)
Timer function (up to 100 minutes in 1-minute increments)
Full Auto Calendar Function (until December 31, 2074)
Dual-time function
Battery life warning function
Internal Illumination (LED)
Case Material: Stainless steel (hard coating)
Case Thickness: 10.6mm
Diameter: 37.0mm
Lug-to-lug: 43.5mm
Crystal: Hardlex
Three-fold clasp with push button release
Distance between lugs: 20mm
Water Resistance: 10 bar
Weight: 108.0g
LIMITED EDITION on the case back
Rotating bezel
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.
