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[47] [52] In December 1969, Seiko produced the world's first commercial quartz wristwatch, the Seiko Quartz-Astron 35SQ [53] [54] which is now honored with IEEE Milestone. [55] [56] The Astron had a quartz oscillator with a frequency of 8,192 Hz and was accurate to 0.2 seconds per day, 5 seconds per month, or 1 minute per year. The Astron was ...
A modern analog Pulsar watch. Pulsar is a watch brand and currently a Seiko Watch Corporation of America (SCA) division. Pulsar was the world's first electronic digital watch. Current Pulsar watches are mostly analog and use the same movements in Seikos such as the 7T62 quartz chronograph movemen
Portrait of Kintarō Hattori, 1916. In 1881, Seiko founder Kintarō Hattori opened a watch and jewelry shop called "K. Hattori" (服部時計店) in Tokyo. [12]Kintarō Hattori had been working as clockmaker apprentice since the age of 13, with multiple stints in different watch shops, such as “Kobayashi Clock Shop”, run by an expert technician named Seijiro Sakurai; “Kameda Clock Shop ...
The term chronograph comes from the Greek χρονογράφος (khronográphos 'time recording'), from χρόνος (khrónos 'time') and γράφω (gráphō 'to write'). '). Early versions of the chronograph are the only ones that actually used any "writing": marking the dial with a small pen attached to the index so that the length of the pen mark would indicate how much time had
Using Seiko's own family of movements but with modern styling designed to appeal to younger customers, Alba watches are primarily aimed at Asian and Middle Eastern markets in the hope of creating long-term loyalty to the Seiko group as these customers' purchasing power increases. [3] The word 'Alba' translates to 'dawn' in Italian, and Spanish. [4]
The Ruputer is a wristwatch computer developed in 1998 by Seiko Instruments, a subsidiary of the Seiko Group. It was introduced on 10 June 1998. [1] In the US, it was later marketed as the onHand PC by Matsucom. The Ruputer has a 16-bit, 3.6 MHz processor and 2 MB of non-volatile storage memory and 128 KB of RAM.
[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.
The aforementioned characteristics allowed the model to achieve increased popularity among collectors. [51] [52] [53] A solar powered model with Bluetooth time reception capabilities called the GA-B2100 was released in 2022. [54] The 2100 series of G-Shock would later go on to span a full metal variation, called the GM-B2100 in 2022. [55]