{"product_id":"birthday-watch-november-1978-seiko-silverwave-7546-8340-suwa-jdm-quartz-watch-oh","title":"Birthday Watch November 1978 Seiko Silverwave 7546-8340 SUWA JDM Quartz Watch (OH)","description":"\u003cp\u003e\u003cstrong\u003eA BIRTHDAY WATCH IS A WATCH PRODUCED THE SAME MONTH AND YEAR AS YOUR BIRTH MONTH AND YEAR\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMake: Seiko\u003cbr\u003eType: Analog Quartz\u003cbr\u003eModel: Silverwave Z\u003cbr\u003eYear of Production: November 1978\u003cbr\u003eMovement: 7546\u003cbr\u003eHand and Dial: Silvery White Dial, 3D Baton Indices with Dauphine Hands\u003cbr\u003eWidth: 35.1mm\u003cbr\u003eLug to Lug Height: 41.1mm\u003cbr\u003eThickness: 10.5mm\u003cbr\u003eLug Width: 19mm\u003cbr\u003eBracelet \/ Strap: Brand-New Good Quality Genuine Leather Brown Strap with Silver Buckle\u003cbr\u003ePouch \/ Box: Brand-New EVA Type Zipper Pouch\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eIntroduced in December 1969, the Seiko Quartz Astron is often credited as the world's first commercially available quartz wristwatch. Quartz watches use a quartz crystal oscillator to keep time that is much more accurate than traditional mechanical movements used in wristwatches at the time.\u003c\/p\u003e\n\u003cp\u003eThe quartz movement in the Astron was incredibly precise, with an accuracy of within 5 seconds per month, far superior to mechanical watches of the era.\u003c\/p\u003e\n\u003cp\u003eThe introduction of the Seiko Quartz Astron had a profound impact on the watch industry. It marked the beginning of the Quartz Revolution that led to the decline of traditional mechanical watches in the market and the rise of more accurate and later, more affordable quartz timepieces.\u003c\/p\u003e\n\u003cp\u003eSeiko's Quartz Astron was showcased at the Baselworld watch fair in Switzerland in 1970, where it received international attention and acclaim because this watch change horology history forever.\u003c\/p\u003e\n\u003cp\u003eFor Seiko Collectors and Vintage fans, this is a Seiko Silverwave 7546-8340 JDM which is one of the most sort after Seiko Silverwave Quartz model; and its beautifully cleaned dial with 3D Baton Indices and Dauphine hands adds class.\u003c\/p\u003e\n\u003cp\u003eThis timepiece was given a good servicing, and its dial was meticulously cleaned, its quartz movement cleaned, and its battery replaced on 22 May 2026. It should be able to operate unhindered until the next battery replacement thereby providing the owner peace of mind.\u003c\/p\u003e\n\u003cp\u003eThe crown is left uncorked to prevent battery drainage.\u003c\/p\u003e\n\u003cp\u003eThis typical cylindrical diver shaped silver case was cleaned and polished. Most imperfections were removed without compromising the case shape. The crystal was replaced with a good quality crystal and is now in mint condition.\u003c\/p\u003e\n\u003cp\u003eThe crown is located at its traditional 4H position and is easily accessible. Since it is a JDM model, its day is in English and Kanji. Cool!\u003c\/p\u003e\n\u003cp\u003eThe case width and height are approximately 35.1mm (without crown) and 41.1mm respectively. The lug to lug is 19mm and the strap can accommodate wrists up to 20cm; hence, this watch is suitable for men and the modern women.\u003c\/p\u003e\n\u003cp\u003eA brand-new good quality genuine brown calf leather strap is included as part of the deal.\u003c\/p\u003e\n\u003cp\u003eTo the best of our knowledge, the watch is 100% original Seiko components from this particular watch. No parts were replaced with aftermarket parts.\u003c\/p\u003e\n\u003cp\u003eEven though the case seal was replaced and crown gasket is present, this timepiece has not been water-resistant tested due to its age.\u003c\/p\u003e\n\u003cp\u003eThe pictures provided show the watch in excellent condition and well maintained. The only drawback is the lack of documentation and original box. A nice purposeful carrying case or box will be provided instead.\u003c\/p\u003e\n\u003cp\u003eBear in mind that this watch has seen many of the previous owners’ ups and downs in life and should be cherished and well taken care of for the next generation to savour such engineering beauty.\u003c\/p\u003e\n\u003cp\u003eYes, there are many other same models in the market, BUT almost all are not in the same quality condition and as well maintained as what you see here. Hence, it is a no-brainer that this one-of-a-kind timepiece will make an extremely beautiful birthday present for that special someone born in November 1978!\u003c\/p\u003e\n\u003cp\u003eThis serviced Collectible Seiko Silverwave 7546-8340 is being sold at S$ 171.00 which is extremely reasonable. So, NO LOW-BALLERS, please! Take note that low-ballers, trolls and wannabe advisors (whose \"advise\" is completely unwelcomed) will not be entertained, and should they persist, they will be reported and blocked!\u003c\/p\u003e\n\u003cp\u003eThis is a highly sort-after Collectible Seiko Silverwave Quartz 7546-8340 JDM in stunning condition; so, be unique and own a November 1978 Birthday Watch that is nearly impossible to source in such fine condition or purchase it for that special someone.\u003cbr\u003e\u003c\/p\u003e","brand":"Altimate Group","offers":[{"title":"Default Title","offer_id":43362071445593,"sku":null,"price":171.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0279\/7590\/9465\/files\/IMG20260523153548.jpg?v=1780084388","url":"https:\/\/shop.altimate.sg\/products\/birthday-watch-november-1978-seiko-silverwave-7546-8340-suwa-jdm-quartz-watch-oh","provider":"Altimate Group","version":"1.0","type":"link"}