Thumbnail [wts] Seiko SLT063 8f56 High Accuracy Quartz/ Perpetual Calendar Very Rare with box. Excellent condition USA only. Price to sell! 1

Thumbnail [wts] Seiko SLT063 8f56 High Accuracy Quartz/ Perpetual Calendar Very Rare with box. Excellent condition USA only. Price to sell! 2

Thumbnail [wts] Seiko SLT063 8f56 High Accuracy Quartz/ Perpetual Calendar Very Rare with box. Excellent condition USA only. Price to sell! 3

Thumbnail [wts] Seiko SLT063 8f56 High Accuracy Quartz/ Perpetual Calendar Very Rare with box. Excellent condition USA only. Price to sell! 4

Thumbnail [wts] Seiko SLT063 8f56 High Accuracy Quartz/ Perpetual Calendar Very Rare with box. Excellent condition USA only. Price to sell! 5

Thumbnail [wts] Seiko SLT063 8f56 High Accuracy Quartz/ Perpetual Calendar Very Rare with box. Excellent condition USA only. Price to sell! 6

Thumbnail [wts] Seiko SLT063 8f56 High Accuracy Quartz/ Perpetual Calendar Very Rare with box. Excellent condition USA only. Price to sell! 7

Thumbnail [wts] Seiko SLT063 8f56 High Accuracy Quartz/ Perpetual Calendar Very Rare with box. Excellent condition USA only. Price to sell! 8

Thumbnail [wts] Seiko SLT063 8f56 High Accuracy Quartz/ Perpetual Calendar Very Rare with box. Excellent condition USA only. Price to sell! 9

Thumbnail [wts] Seiko SLT063 8f56 High Accuracy Quartz/ Perpetual Calendar Very Rare with box. Excellent condition USA only. Price to sell! 10

Thumbnail [wts] Seiko SLT063 8f56 High Accuracy Quartz/ Perpetual Calendar Very Rare with box. Excellent condition USA only. Price to sell! 11

Thumbnail [wts] Seiko SLT063 8f56 High Accuracy Quartz/ Perpetual Calendar Very Rare with box. Excellent condition USA only. Price to sell! 12

Thumbnail [wts] Seiko SLT063 8f56 High Accuracy Quartz/ Perpetual Calendar Very Rare with box. Excellent condition USA only. Price to sell! 13

Thumbnail [wts] Seiko SLT063 8f56 High Accuracy Quartz/ Perpetual Calendar Very Rare with box. Excellent condition USA only. Price to sell! 14

Thumbnail [wts] Seiko SLT063 8f56 High Accuracy Quartz/ Perpetual Calendar Very Rare with box. Excellent condition USA only. Price to sell! 15

Thumbnail [wts] Seiko SLT063 8f56 High Accuracy Quartz/ Perpetual Calendar Very Rare with box. Excellent condition USA only. Price to sell! 16

Thumbnail [wts] Seiko SLT063 8f56 High Accuracy Quartz/ Perpetual Calendar Very Rare with box. Excellent condition USA only. Price to sell! 17

Thumbnail [wts] Seiko SLT063 8f56 High Accuracy Quartz/ Perpetual Calendar Very Rare with box. Excellent condition USA only. Price to sell! 18

Model:	Seiko Alpinist	Last Scraped:	Dec. 6, 2025, 5:47 p.m.
Username:	Ok_Upstairs6472	Location:	Unknown
Email:	Unknown	Feedback:	No Reviews Found

Hi everybody. I’m selling my very rare The Great Blue 8f56 Perpetual Calendar SLT063 in SS bracelet. It is running perfect, with same engine as the Perpetual Calendar Alpinist, only much rarer than those. This may be your last chance to own this with its original box. Price is $820 free shipping to Conus only. Payment via PayPal or zelle. I can video call if you want to see the watch yourself. Thanks.

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Highest:	$1,450	Lowest:	$1
Median:	$650.00	Std. Dev:	±$274.57

Estimated Private Party Value $499 — $875


	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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