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Model:	Seiko 4402-8000	Last Scraped:	Jan. 21, 2026, 7:17 a.m.
Username:	Ezodan	Location:	Unknown
Email:	Unknown	Feedback:	No Reviews Found

Hi all, For sale my Seiko Age of Discovery 6m23-8000 Intelligent Calendar in stainless steel (quite rare compared to the gold version which is already quite rare). The watch comes with the original strap (in the pictures I had it on another watch on display as this one was receiving a service). The strap was stored with care and hasn't dried out and is in like new condition. Service history and Functions: The watch was just serviced (this January) and all functions are working as they should (can make a video or do FaceTime upon request). Condition: The watch has some very light hairline scratches from minimal use but besides that it remains in excellent condition. No deep scratches or marks, no dents, no discoloration. Price: $675 + shipping with strap or $575 + shipping without strap. Shipping: I ship worldwide with track&trace, signature for delivery and insurance. Shipping prices are minimum $20 (for EU) and maximum $45 (for USA), ask me for a quote anytime. Payment: Paypal (G&S for anyone with at least 1 transaction, F&F for anyone without a single transaction or reference).

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Highest:	$1,300	Lowest:	$50
Median:	$340.00	Std. Dev:	±$327.23

Estimated Private Party Value $180 — $650


	Established:	1881
	Website:	http://seikousa.com/index.php
	Country of Origin:	Japan

The company was founded in 1881, when Kintarō Hattori opened a watch and jewelry shop called "K. Hattori" (服部時計店 Hattori Tokeiten?) in the Ginza area of Tokyo, Japan. Eleven years later, in 1892, he began to produce clocks under the name Seikosha (精工舎 Seikōsha?), meaning roughly "House of Exquisite Workmanship". According to Seiko's official company history, titled "A Journey In Time: The Remarkable Story of Seiko" (2003), Seiko is a Japanese word meaning "exquisite" or "success" ("exquisite" is usually written 精巧 from Chinese jīngqiǎo, while the meaning "success" is usually written 成功 from Chinese chénggōng).

Seiko is perhaps best known for its wristwatches, all of which were at one time produced entirely in-house. This includes not only major items such as microgears, motors, hands, crystal oscillators, batteries, sensors, LCDs but also minor items such as the oils used in lubricating the watches and the luminous compounds used on the hands and the dials.

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