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The Encyclopedia of Horology

Wristwatch · Perpetual calendar wristwatch

Citizen Eco-Drive Chandler Perpetual Calendar Wristwatch

Partially verified

This is an individual Citizen Eco-Drive Chandler perpetual calendar wristwatch, reference BL8004-53E, powered by Japanese quartz movement caliber Citizen E870. The watch is constructed in a stainless steel round case measuring 39 mm across and 42.2 mm including the crown, fitted with a matching multi-link stainless steel bracelet. The black textured dial displays Roman numerals, three subsidiary indicators, a date aperture at 4 o'clock, and an outer flange marked with the months. Functions include retrograde perpetual calendar indications, 12/24-hour time, dual time, and an alarm.

Front view of the Citizen Eco-Drive wristwatch showing the black multi-subdial layout and steel bracelet
Front view of the Citizen Eco-Drive wristwatch showing the black multi-subdial layout and steel bracelet — Second Hand Horology. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
secondhandhorology.com
Category
Wristwatch · Perpetual calendar wristwatch
Maker / attribution
Citizen Watch Co.
Reference
BL8004-53E
Catalogue / lot identifier
WA-4608
Source-reported date
Not established
Country
Japan
Source-reported serial
892082

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

Identification and Reference

The timepiece is identified by the seller as a Citizen Eco-Drive Chandler. The source text contains conflicting reference information, citing both BL8004-53E and BL8000-54E within the product description.

The watch is powered by a Japanese quartz movement, specifically Citizen caliber E870. The case back markings confirm the caliber and serial number as E870-S015278 and 892082, respectively.

Evidence for this section
  • “this is the Citizen Chandler Eco-Drive wristwatch, reference BL8004-53E.”
  • “CITIZEN Eco-Drive Chandler Perpetual Calendar Ref. BL8000-54E”
  • “Citizen Watch Co. CITIZEN Eco-Drive Calibre 8700 W.R. 10BAR Mov'T Japan St. Steel E870-S015278 892082”

Construction and Dimensions

The watch features a stainless steel round case with a reported diameter of 39 mm, or 42.2 mm when measured with the crown. The lug-to-lug distance is 46 mm, with a case thickness of 10 mm and a lug width of 20 mm.

The case is paired with a stainless steel multi-link bracelet secured by a fold-over clasp with hidden push buttons. Water resistance is stated at 10 BAR (100 meters).

Evidence for this section
  • “Measurements (mm): Case 39 Case w/Crown 42.2 Case Lug to Lug 46 Case Thickness 10 Lug Width 20 Band Width 20”
  • “Water-resistance WR100M/10BAR/330ft”

Dial and Visual Features

The black dial includes a textured center section and applied silver-tone Roman numeral hour markers. The layout incorporates a 24-hour dial at the 9 o'clock position, a day-of-week indicator at 2 o'clock, and a function/mode selector at 6 o'clock.

Additional display elements include a date aperture at 4 o'clock and an outer flange on the bezel printed with the months of the year.

Evidence for this section
  • “Black dial with textured center section and applied silver-tone Roman numeral hour markers.”
  • “Multiple subdials including a 24-hour dial at 9 o'clock, day-of-week indicator at 2 o'clock, and function/mode selector at 6 o'clock.”
  • “Perimeter bezel chapter ring printed with the twelve months of the year.”

Open research questions

  • Which of the two listed reference numbers (BL8004-53E or BL8000-54E) is the correct factory designation for this specific dial and bracelet combination?
  • What is the manufacturing date indicated by the serial number 892082 according to the Citizen serialization system?

Source evidence

Recorded claims and source quotations for Citizen Eco-Drive Chandler Perpetual Calendar Wristwatch
FieldSource-reported valueSource quotation
SKUWA-4608“SKU: WA-4608”
ReferenceBL8004-53E“reference BL8004-53E.”
CaliberCitizen E870“Japanese movement caliber Citizen E870.”
Case MarkingsCitizen Watch Co. CITIZEN Eco-Drive Calibre 8700 W.R. 10BAR Mov'T Japan St. Steel E870-S015278 892082“Citizen Watch Co. CITIZEN Eco-Drive Calibre 8700 W.R. 10BAR Mov'T Japan St. Steel E870-S015278 892082”
Water ResistanceWR100M/10BAR/330ft“Water-resistance WR100M/10BAR/330ft”
Serial Number892082“892082”
Bracelet CapacityUp to 7.5 inches“It will fit a wrist up to 7 1/2" (19.1 cm).”

Visible details

  • Black dial with textured center section and applied silver-tone Roman numeral hour markers.
  • Multiple subdials including a 24-hour dial at 9 o'clock, day-of-week indicator at 2 o'clock, and function/mode selector at 6 o'clock.
  • Perimeter bezel chapter ring printed with the twelve months of the year.
  • Stainless steel case and multi-link bracelet with high-polish bezel.

Research qualifications

  • The source text notes both BL8004-53E and BL8000-54E in different sections of the description.
  • Case back is not pictured among the provided views, though markings are listed in the description.

Photograph identity and source facts were screened before import; rights clearance remains pending.

Consulted source

CITIZEN Eco-Drive Chandler Watch BL8004-53E Perpetual Calendar Wristwa – SECOND HAND HOROLOGY

Reviewed 2026-10-22 · Record 6aef483679

Terms in this record

Glossary explanations for terms named in this object’s record.

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