File:Seiko 35A.jpg
Seiko_35A.jpg (456 × 456 pixels, file size: 34 KB, MIME type: image/jpeg)
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DescriptionSeiko 35A.jpg |
Deutsch: Erstes Quarzarmbanduhrwerk Kal. 35A, Nr. 00234, Seiko, Japan, 1969 (Deutsches Uhrenmuseum, Inv. 2010-006)
English: First quartz wristwatch movement, used in the Seiko Astron, Caliber 35A, Nr. 00234, Seiko, Japan, 1969 (German Clock Museum, Inv. 2010-006). Essential elements included a XY-type quartz oscillator of 8,192 Hz (8,192 = 213), a hybrid integrated circuit, and a phase locked ultra-small stepping motor to turn its hands. According to Seiko, it was accurate to ±5 seconds per month or one minute per year, and its battery life was 1 year or longer.[1] |
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Date | |||
Source | Deutsches Uhrenmuseum | ||
Author | Museumsfoto | ||
Permission (Reusing this file) |
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- ↑ Seiko Quartz Astron 35SQ. Seiko Epson Corporation. Retrieved on 2018-01-22.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 16:27, 6 December 2012 | 456 × 456 (34 KB) | Ras67 (talk | contribs) | losslessly cropped with Jpegcrop | |
12:42, 5 October 2011 | 600 × 579 (40 KB) | Onnahfarg (talk | contribs) |
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Orientation | Normal |
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Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop CS Windows |
File change date and time | 09:13, 5 October 2011 |
Color space | Uncalibrated |
Image width | 600 px |
Image height | 579 px |
Date and time of digitizing | 10:13, 5 October 2011 |
Date metadata was last modified | 10:13, 5 October 2011 |