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Seiko Bell-Matic Alarm (Ref. 4006-6039), 1971 — view 1 of 6
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Wristwatches · Wristwatch

Seiko Bell-Matic Alarm (Ref. 4006-6039), 1971

DocumentedDocumented from a dealer's listing; attribution and date as stated by the dealer.
Maker / attribution
Seiko (maker)
Date
1971
Country of origin
Japan
Object type
Wristwatch
Stock no.
SKO40066039
Credit line
Dealer listing, Craft & Tailored (SKO40066039)
Catalogue title (original)
1971 Seiko Bell-Matic Alarm (Ref. 4006-6039) (English)

View the source record (dealer listing) ↗ (opens another website in a new tab)Suggest a correction

Record summary

Catalogued by Craft & Tailored (dealer), Los Angeles (stock number SKO40066039), this is a wristwatch by Seiko, made in Japan, dated 1971. 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 — Craft & Tailored

Seiko introduced their first alarm watch, the Bell-Matic in 1966. The Seiko Bell-Metic is revered as an exciting Seiko piece because it is a fully automatic alarm watch and hosts 4 different functions from one crown. The Bell-Matic alarm sounds from a small, spring-powered hammer that repeatedly strikes a curved metal spring. When activated, the alarm sounds for approximately 10 seconds. One very special feature of the Bell-Metic lies within the multi-functional crown, which is used to set the time, set the alarm, wind the alarm power, and set the day. The automatic winding capability of the Bell-Matic frees up the crown to perform all four functions. To power the alarm, press in the 2 o'clock button and wind the crown. The Bell-Matic crown requires only a few quick rotations to fully power the alarm. Pulling out the button at the 2 o’clock sets the alarm while pushing it back in disables it. Pull the crown out to its first position, and this will enable the indicator ring to be moved and set to the desired alarm time. The triangular marker on the ring indicates when the alarm will sound. In addition to the other (literal) bells and whistles, this watch allows for quick setting the date by pushing and releasing the alarm button into its second position. Stock # SKO40066039 Brand Seiko Style Bell-Matic Alarm Model 4006-6039 Serial 13XXXX Size Men's Material Stainless Steel Dial Silver Millimeters 39 Bracelet Seiko Stainless Steel "Coffin" Bracelet CASE & BRACELET The excellent case has been lightly polished in the past and retains strong dimensions with honest signs of use. The case retains its original alarm button and crown. The case back retains its original factory markings in deep and legible condition. The Seiko "Coffin" bracelet shows light signs of use and retains 12 links that show light stretch. DIAL & HANDS The silver sunburst dial is bright and in beautiful condition showing no blemishes and only minimal age. The inner rotating alarm bezel is in flawless condition, showing no wear or age. The lume plots on the dial are in perfect condition and have achieved a light green patina which is common for Seikos, under U.V. light inspection the lume plots exhibit no degradation. The original luminous hands match the dial perfectly and display no degradation when inspected under U.V. light. ACCESSORIES None. Watch is functioning perfectly and keeping time, previous service history is unknown.

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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