Seiko Duo-Display Quartz H023 Analog Digital World Time Watch New in Box Vintage
AS001
Seiko Duo-Display Quartz H023 Analog Digital World Time Watch New in Box Vintage - With New Battery - Installed on Nov 12, 2025 - See attached Jewelry Store receipt!
Offered is a vintage Seiko Duo-Display Quartz Watch, Model H023, presented in “New” condition with original box, pillow, and instruction booklets. This rare model features both analog and digital timekeeping, plus world time, chronograph, and alarm functions. The robust stainless steel case and bracelet give a timeless appearance, making it suitable for collectors and everyday wearers alike. The watch boasts a water resistance of 10 bar (100 meters), is powered by Seiko's H023 quartz movement, and displays date, day, and time across multiple world cities. Approximate case size is 47mm including pushers; bracelet accommodates up to a 9.75-inch wrist. Weight is approximately 183.8g. All original packaging is included, reflecting a true unused collector’s condition.
Key Specifications
Model: Seiko H023 Duo-Display Quartz
Movement: Caliber H023, quartz, analog & digital
Case Diameter: Approx. 47mm (including pushers)
Case Thickness: About 5.5mm (movement height only; assembled watch is thicker)
Bracelet: Stainless steel, up to 9.75-inch wrist
Water Resistance: 10 BAR (100 meters)
Functions: Analog & digital time, world time, chronograph, alarm, perpetual calendar
Weight: Approx. 183.8g
Crystal: Mineral
Original Box: Yes
Original Booklet: Yes
Jewels: 5
Country of Manufacture: Japan
Sold as is. No warranty from the seller. No Returns.
CONDITION NOTE: New, in its original box, and never used. Taken out of the box only to take pictures and have a new battery put in by a professional. Comes with its original box, outter sleeve (which has some edge wear from storage), packaging, and user manuals. The original battery was replaced on Nov 12, 2025. The white Seiko pillow that watch is on, is fraying a bit from age, with some white flacks coming off it it, so a new pillow was purchased, but the original Seiko pillow is included. See detailed (zoom-able) pictures to know what you are purchasing.
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Source of product research for this listing was from an AI engine and I cannot be sure that it is 100% accurate. I encourage you to confirm this information with your own research.
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Short Background on the Manufacturer
Seiko is a world-renowned Japanese watchmaker, founded in 1881 by Kintaro Hattori. Famed for their innovation, Seiko was among the first to introduce quartz and analog-digital “duo-display” movements, pioneering numerous advances in watchmaking accuracy and reliability. The name “Seiko” is synonymous with precision, quality, and enduring design, reflected across decades of successful models.
Country this Product was Manufactured In
Japan.
Release Date or Age of Item
The Seiko Duo-Display H023 series was released circa 1999–2003, representing the era’s pinnacle of world-time quartz functionality. This specific watch was purchased in 2008.
Seiko, analog digital, duo display, H023, world time, quartz, alarm, chronograph, vintage watch, stainless steel, sportura, sky professional, boxed, Japanese watch, collector, NOS, 10BAR, water resistant, 2000s, multifunction
Offered is a vintage Seiko Duo-Display Quartz Watch, Model H023, presented in “New” condition with original box, pillow, and instruction booklets. This rare model features both analog and digital timekeeping, plus world time, chronograph, and alarm functions. The robust stainless steel case and bracelet give a timeless appearance, making it suitable for collectors and everyday wearers alike. The watch boasts a water resistance of 10 bar (100 meters), is powered by Seiko's H023 quartz movement, and displays date, day, and time across multiple world cities. Approximate case size is 47mm including pushers; bracelet accommodates up to a 9.75-inch wrist. Weight is approximately 183.8g. All original packaging is included, reflecting a true unused collector’s condition.
Key Specifications
Model: Seiko H023 Duo-Display Quartz
Movement: Caliber H023, quartz, analog & digital
Case Diameter: Approx. 47mm (including pushers)
Case Thickness: About 5.5mm (movement height only; assembled watch is thicker)
Bracelet: Stainless steel, up to 9.75-inch wrist
Water Resistance: 10 BAR (100 meters)
Functions: Analog & digital time, world time, chronograph, alarm, perpetual calendar
Weight: Approx. 183.8g
Crystal: Mineral
Original Box: Yes
Original Booklet: Yes
Jewels: 5
Country of Manufacture: Japan
Sold as is. No warranty from the seller. No Returns.
CONDITION NOTE: New, in its original box, and never used. Taken out of the box only to take pictures and have a new battery put in by a professional. Comes with its original box, outter sleeve (which has some edge wear from storage), packaging, and user manuals. The original battery was replaced on Nov 12, 2025. The white Seiko pillow that watch is on, is fraying a bit from age, with some white flacks coming off it it, so a new pillow was purchased, but the original Seiko pillow is included. See detailed (zoom-able) pictures to know what you are purchasing.
=======================================================
Source of product research for this listing was from an AI engine and I cannot be sure that it is 100% accurate. I encourage you to confirm this information with your own research.
=======================================================
Short Background on the Manufacturer
Seiko is a world-renowned Japanese watchmaker, founded in 1881 by Kintaro Hattori. Famed for their innovation, Seiko was among the first to introduce quartz and analog-digital “duo-display” movements, pioneering numerous advances in watchmaking accuracy and reliability. The name “Seiko” is synonymous with precision, quality, and enduring design, reflected across decades of successful models.
Country this Product was Manufactured In
Japan.
Release Date or Age of Item
The Seiko Duo-Display H023 series was released circa 1999–2003, representing the era’s pinnacle of world-time quartz functionality. This specific watch was purchased in 2008.
Seiko, analog digital, duo display, H023, world time, quartz, alarm, chronograph, vintage watch, stainless steel, sportura, sky professional, boxed, Japanese watch, collector, NOS, 10BAR, water resistant, 2000s, multifunction