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Created Sunday 19 May 2024
Seiko 5 Sports
SNZG09K1
7S36 23 Jewel
21600 BPH (6Hz)
Automatic
case: 42mm
Strap Size 22 mm
Founded in 1881 by Kintarō Hattori in Tokyo, Seiko introduced the world's first commercial quartz wristwatch in 1969.
Seiko is widely known for its wristwatches.[6] Seiko, Citizen and Rolex are the only three watch companies considered to be vertically integrated.[7] Seiko is able to design and develop all the components of a watch, as well as assemble, adjust, inspect and ship them in-house. Seiko's mechanical watches consist of approximately 200 parts, and the company has the technology and production facilities to design and manufacture all of these parts in-house.
The company was incorporated (K. Hattori & Co., Ltd.) in 1917 and renamed Hattori Seiko Co., Ltd. in 1983 and Seiko Corporation in 1990. After reconstructing and creating its operating subsidiaries (such as Seiko Watch Corporation and Seiko Clock Inc.), it became a holding company in 2001 and was renamed Seiko Holdings Corporation on July 1, 2007. Seiko Holdings Corporation was renamed Seiko Group Corporation as of October 1, 2022.
Seiko watches were originally produced by two different Hattori family companies (not subsidiaries of K. Hattori & Co); one was Daini Seikosha Co. (now known as Seiko Instruments Inc., a subsidiary of Seiko Holdings since 2009) and the other was Suwa Seikosha Co. (now known as Seiko Epson Corporation, an independent publicly traded company). Having two companies both producing the same brand of watch enabled Seiko to improve technology through competition and hedge risk. It also reduced risk of production problems, since one company can increase production in the case of decreased production in the other parties. Seiko remains as one of the world's most recognised watchmaking brands.
At present, quartz and Spring Drive watches are manufactured in Shiojiri, Nagano (Epson), and mechanical watches in Shizukuishi, Iwate (Morioka Seiko Instruments). Some of the watches exported abroad, such as the Seiko 5, are also manufactured in Ninohe, Iwate, by Ninohe Tokei Kogyo (established in 1974 as a parts factory for Seiko).
Seiko produces watches with quartz, kinetic, solar, and mechanical movements of varying prices, ranging from around ¥4,000 (US$45) to ¥50,000,000 (US$554,000).[28] Seiko has created many different brands in Japan and the international market including Lorus, Pulsar, and Alba.
Pulsar
This is a Pulsar V657-X063, the civilian version of the RAF issued watch, and is the desirable 1st Generation.
Pulsar V657-X063 (gen 1) civilian
Serial No 410544 possibly made in Jan 1994?
Battery
SR920SW (Renata 371) or 370 (higher capacity)
Reference: V657-X063
Type: Civil military chronograph
Case material: Stainless steel
Case diameter (excluding crown): 39 mm
Lugs to lugs: 48 mm
Lug width: 20 mm
Hattori Japan 6 Hand Chrono Quartz Watch Movement V657
Requires watch cell 370
Requires watch hands: hour 1.10, minute .65, and sweep second .20mm
Has a white with black date dial at 3:00
Chrono minute hand
Chrono second hand
Chrono 1/10 second
Has NO jewels
produced around 1993
Seiko 6309
Seiko 6309
Seiko 6309-8000
Serila No 701509
Oct 1977
Automatic 6309 17 Jewels
21600 BPH
Lugs=19mm
case = 37mm
Movement Type Automatic
Lignes 12”’
Diameter 27mm
Height 5.3mm thick
Jewels 17
Vibrations Per Hour 21,600 bph
Power Reserve 47 hours
The Seiko calibre 6309 is a vintage automatic workhorse movement that was found in many Scuba Diver models (inc 'Turtle watches'), seiko 5, and dress watches in the 1980’s.
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