💫⌚Rare Vintage Seiko Bell-Matic Ref.4006-6010 – Mechanical Alarm Watch (1973 Japan)⌚💫

A true collector’s gem — Seiko’s Bell-Matic series was one of the first automatic watches to feature a mechanical alarm, powered by the legendary Caliber 4006 (17 Jewels) movement. This particular reference (4006-6010) dates from March 1973 and represents one of Seiko’s most innovative engineering triumphs of the 1970s.

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🔹 Details & Functions

• Reference: 4006-6010 (Japan J Serial 312893)

• Caliber: Seiko 4006 – 17 Jewels Mechanical Automatic Alarm

• Case: Stainless Steel (37.4 mm diameter × 13.5 mm thick)

• Bracelet: Original Seiko stainless-steel signed clasp

• Crystal: Acrylic domed

• Dial: Charcoal-black sunburst with applied baton markers and luminous hands

• Alarm Indicator Ring: Rotating inner bezel with orange alarm triangle

• Day / Date window at 3 o’clock (bilingual display)

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🧭 Operation Guide

• Crown at 3 o’clock:

• 1st pull → Rotate inner alarm ring to set alarm time

• 2nd pull → Set main time

• Button at 2 o’clock:

• Press → Quick-set date

• Pull up → Activate alarm mode

• Day setting: Advance hands through 24-hour rotation

• When alarm activates, a distinctive mechanical bell rings inside the case — a beautiful, string-like vintage tone unique to Seiko Bell-Matics.

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💫 Condition

• Works fine and keeps time.

• Alarm mechanism tested and functional (see video & sound demo in listing).

• Vintage marks of age on case and crystal consistent with use.

• Sold AS IS as a vintage collectible timepiece.

• Not tested for water resistance.

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💎 Value & Rarity

Comparable examples online retail above $1,400 USD, making this a beautifully priced investment in Seiko heritage and mechanical artistry.

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🏆 Authenticity Promise

Every watch I list is 100% authentic. If authenticity is ever in doubt, I offer a full money-back guarantee.

Take a moment to review my long-standing positive feedback — it speaks for itself.

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📦 Shipping & Customs

Due to recent import-tariff changes under U.S. trade regulations, customs may apply additional duties on luxury-branded items. If such fees occur, I’ll gladly assist with invoice documentation to ease clearance.

If a buyer refuses delivery or fails to pay customs fees and the package is returned, the buyer is responsible for both outbound and return shipping costs as well as any re-import fees.