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Seiko HFL001P1 Rotocall Watch - 145th Anniversary - Limited Edition
The Seiko HFL001P1 brings back the design of the 1982 Rotocall in a limited edition celebrating Seiko's 145th anniversary. This digital quartz watch combines a black case and bracelet with a purple rotating aluminium bezel and gold-tone accents. The colour combination draws inspiration from Edo purple, a traditional Japanese colour associated with Tokyo's cultural identity.
The defining feature of the Seiko Rotocall HFL001P1 is its octagonal rotary selector, which allows the wearer to switch functions by turning the bezel. This system revives one of the most distinctive features of the original Rotocall, a digital watch launched in 1982 that gained international popularity and was used by astronauts. More than a design detail, the selector is an integral part of this Seiko digital watch's functional identity.
Inside, it features the A824 quartz calibre, with a stopwatch, counter, daily and one-time alarms, timer, dual time, automatic calendar and LED illumination. The case measures 37 mm in diameter, 10.6 mm thick and 43.5 mm from lug to lug. Hardlex crystal, a screw-down case back and 10 bar water resistance complete this retro-inspired digital watch designed for everyday wear. Seiko has limited this anniversary edition to 4,000 pieces worldwide.
Seiko 145th Anniversary Limited Edition of 4,000 Pieces 1982 Rotocall Design A824 Calibre
Why choose this watch?
The Seiko HFL001P1 is an appealing choice for anyone looking for a men's digital watch that stands apart from conventional sports designs. Its main attraction is the rotary selector inherited from the Rotocall, a feature that gives the watch its own character and connects this edition to Seiko's digital watchmaking history. The compact 37 mm case offers balanced proportions, while the combination of black, purple and gold-tone accents distinguishes this anniversary version. The A824 calibre adds practical timing functions without resorting to a conventional design. Its limited production of 4,000 pieces also makes it an interesting reference for collectors and enthusiasts of historic Seiko digital watches.
Technical specifications
Movement
- Type: digital quartz.
- Calibre: Seiko A824.
- Accuracy: ±20 seconds per month.
- Battery life: approximately 3 years, depending on the manufacturer's stated usage conditions.
- Functions: rotary selector, counter, stopwatch, daily alarm, one-time alarm, timer, dual time, automatic calendar, low battery warning and LED illumination.
- Stopwatch: measures up to 99 hours, 59 minutes and 59 seconds; displays increments of 1/100 of a second and, after 60 minutes, increments of 1 second.
- Timer: up to 100 minutes, adjustable in 1-minute increments.
- Counter: single counter up to 9,999 and dual counter up to 99 per counter.
- Calendar: full automatic calendar up to 31 December 2074.
Display and indications
- Display type: digital LCD.
- Design: inspired by the 1982 Seiko Rotocall.
- Selector: rotating bezel with a function-selection mechanism.
- Colour details: purple bezel and gold-tone accents.
Case and dimensions
- Commercial reference: HFL001P1.
- Official model reference: HFL001P.
- Brand: Seiko.
- Collection: Seiko Selection S Series, 145th anniversary edition.
- Case material: stainless steel with hard coating.
- Case colour: black.
- Diameter: 37 mm.
- Lug-to-lug length: 43.5 mm.
- Thickness: 10.6 mm.
- Bezel: rotating purple aluminium.
- Case back: screw-down, engraved LIMITED EDITION.
- Water resistance: 10 bar (100 m).
- Weight: 108 g.
Crystal, bracelet and clasp
- Crystal: Hardlex.
- Bracelet: stainless steel with black hard coating.
- Lug width: 20 mm.
- Clasp: three-fold clasp with push button.
- Maximum wrist size stated by Seiko: 195 mm.
Special edition
- Occasion: Seiko's 145th anniversary.
- Historical inspiration: the 1982 Rotocall digital watch.
- Anniversary colour: Edo purple, combined with black and gold-tone accents.
- Production: 4,000 pieces worldwide, including 400 allocated to the Japanese market.
Frequently asked questions
How does the Rotocall system differ from other Seiko digital watches?
The Rotocall's distinctive feature is its octagonal rotary selector, which lets the wearer change modes by turning the bezel rather than navigating every function solely through conventional push buttons. On the Seiko HFL001P1, this mechanism revives the defining feature of the 1982 design and is one of the main reasons to choose this model over other Seiko digital watches.
What timing functions does the Seiko A824 calibre offer?
The A824 calibre includes a stopwatch that measures up to 99 hours, 59 minutes and 59 seconds, with hundredth-of-a-second readings during the first 60 minutes and one-second increments thereafter. It also includes a programmable timer of up to 100 minutes and single and dual counter functions. These features let you measure intervals, track elapsed time and perform different timing operations without adding mechanical complications.
