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These watches were all marked ‘Hi-Beat’ on the dial despite being only 28,800 bph (instead of 36,000). The 56KS was made until 1975, when the King Seiko line was discontinued by the company. The last King Seiko collection was made by Daini, and was the 52KS, starting off in 1971 and made until 1975. This line used the 5245 and 5246 movement.
Seiko, SII and Epson logos. Three companies share "Seiko" in their official names but have different corporate visual identities.. Seiko Group (セイコー・グループ, Seikō Gurūpu) was a Japanese corporate group consisting of three core companies Seiko Holdings Corp. (Seiko; f/k/a K. Hattori & Co., Hattori Seiko), Seiko Instruments Inc. (SII; f/k/a Daini Seikosha, Seiko Instruments ...
In 2006 to increase production of its highly demanded mechanical movements, Swatch discontinued supplying the Autoquartz line to customers (service and parts are still available). Then in 2009, possibly due to available production capacity or stocked parts, Tissot reintroduced the Autoquartz in its PRC200 dive watch. The Autoquartz movement ...
In watch movements the wheels and other moving parts are mounted between two plates, which are held a small distance apart with pillars to make a rigid framework for the movement. One of these plates, the front plate just behind the face, is always circular, or the same shape and dimensions as the movement. The back plate has various shapes:
[1] [8] In 1999, the first production models were made available in Japan as limited edition, manual-wind watches in both the Credor and Seiko brands. [2] [5] [8] The first non-limited model was released in Japan in 2002. [5] The 1st spring drive automatic-wind movement of Grand Seiko was released in September 2004, the reference number is SBGA001.
Seiko Quartz Astron 35SQ, the world's first commercial quartz watch developed by Suwa Seikosha. 1881 — Kintarō Hattori opens the watch and jewelry shop "K. Hattori" (Hattori Tokeiten in Japanese; currently named Seiko Holdings Corporation) in the Ginza area of Tokyo, Japan.
ETA Mechanical movements Caliber Product Line Winding Diameter Height Jewels Frequency Running time VPH Hz; 2671 [1] Mecaline automatic 17.2 4.8 25 28800 4 38 2678 [2] Mecaline automatic 17.2 5.35 25 28800 4 38 2000-1 [3] Mecaline Specialities automatic 19.4 3.6 20 28800 4 40 2681 [4] Mecaline automatic 19.4 4.8 25 28800 4 38 2094 [5]
[8] [9] Members of the lineage include James W. Packard's minute repeating pocket watch (1918), which was auctioned for US$1.763 million by Christie's in New York on 15 June 2011, and King Fuad I's pocket watch No. 402833 (1929), which ranks as one of the most expensive watches ever sold at auction, fetching US$2.77 million (3,306,250 CHF) in ...