
Wristwatches · Wristwatch
Grand Seiko 4520 8010, 1970s
- Maker / attribution
- Grand Seiko (maker)
- Date
- 1970s
- Historical period
- Quartz Revolution (1969 – 1990)
- Country of origin
- Japan
- Object type
- Wristwatch
- Stock no.
- Product 3855589605463
- Credit line
- Dealer listing, S.Song Watches (product 3855589605463)
- Catalogue title (original)
- Grand Seiko 4520 8010 (English)
View the source record (dealer listing) ↗ (opens another website in a new tab)Suggest a correction
Record summary
Catalogued by S.Song Watches (dealer), Seattle (stock number Product 3855589605463), this is a wristwatch by Grand Seiko, made in Japan, dated 1970s. The Atlas places it in the Quartz Revolution period (1969 – 1990) of its Wristwatches collection. The record is illustrated with 6 photographs.
Assembled from the source record's structured fields. Dates and attributions are given as the source states them; where a field is missing the Atlas leaves it blank rather than estimating.
Catalogue description
Dealer description — S.Song Watches
It is no secret anymore that Grand Seiko produces one of the best watches in the world, both in terms of movement quality and craftsmanship. Looked down for a long time for being Japanese and not Swiss, discerning collectors are past this farcial thought and have accepted the true reality. While modern Grand Seikos now enjoy this status, a little less known is the fact that Grand Seiko has been producing watches like this for a long, long time. Introducing the Grand Seiko 4520-8010, this is a vintage piece from the ’70s and is defined by its unique cushion shaped case that is crafted in 18k yellow gold. This reference is perhaps the pinnacle of vintage Grand Seiko, both in terms of rarity and sheer quality. What immediately stands out is the linen texture of the front of the case that shimmers with reflections of light and makes for a stunning dress watch. The feel of this watch is remarkable- one is able to tell the quality of this piece straight away by holding it, with a nice heft brought on by the solid gold. Moreover, this example comes in pristine condition, with its linen texture still sharp and displaying strong, preserved bevelling. The dial displays no damage and looks as good as the day it came out of the factory. Powered by the Calibre 4520A, it was a highly accurate movement produced by the then Daini Seikosha company. Many consider this era to be of Grand Seiko’s greatest and it is not hard to see why. On top of this, they didn’t make many of this reference and the 4520-8010 is one of the grails of vintage Grand Seikos.
Historical context
Quartz Revolution (1969 – 1990)
Seiko's Astron begins mass quartz timekeeping; traditional industries contract sharply.
Quartz and digital watches transformed the market after 1969. Swiss employment collapsed, Japanese and Hong Kong production soared, and the Swatch (1983) helped the Swiss industry recover; mechanical watches survived as luxury goods.
Read the period in the timelineMore wristwatches from this periodEarlier: Modern Mechanical Horology
Atlas type guide
Wristwatches
Bracelet watches were worn by women from the early nineteenth century — Breguet made one for Caroline Murat, Queen of Naples, in 1810–12 — but the wristwatch only became a man's instrument with military use and aviation in the early twentieth century. Between the World Wars it overtook the pocket watch; the 1920s and 1930s brought rectangular Art Deco cases, water-resistant cases and the first automatic winding systems.
After 1945 the wristwatch became a carrier of identity — dress watches, sports and dive watches, chronographs, calendars — produced by Swiss, American, Japanese, German, Soviet and Chinese industries. The quartz revolution after 1969 and the mechanical renaissance since the 1990s, including the rise of independent watchmakers, complete the story.
What to look for
- The reference number (between the lugs or inside the case back) and serial number, the starting point for dating.
- The calibre: its maker and number are often stamped under the dial or on the bridge.
- Originality of dial, hands and crown — refinished ('redial') dials are common.
- Case material marks: 18K/750, 14K/585, stainless steel, gold-filled, plated.
Dating clues
- Wire-lug cases: before c. 1925.
- Water-resistant screw-down cases: from 1926.
- Quartz movements: from 1969; sapphire crystals widespread after c. 1980.
General guidance written by the Atlas editors about this kind of object. It is not a statement about this particular piece; for that, rely on the source record above and on physical examination.
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