https://antiqueseththomas.com Sat, 12 Sep 2026 06:41:38 +0000 en-US hourly 1 https://wordpress.org/?v=4.1.1 https://antiqueseththomas.com/seth-thomas-adamantine-mantle-clock-6-pillar-ornate-brass-accents-vintage/ https://antiqueseththomas.com/seth-thomas-adamantine-mantle-clock-6-pillar-ornate-brass-accents-vintage/#comments Thu, 03 Sep 2026 06:23:44 +0000 https://antiqueseththomas.com/seth-thomas-adamantine-mantle-clock-6-pillar-ornate-brass-accents-vintage/




















Seth Thomas Adamantine Mantle Clock 6-Pillar & Ornate Brass Accents Vintage. Working, it needs the time set. Clock mechanism in excellent condition. Has the original wind-up key. There is the Seth Thomas logo mark on the mechanism. Clock winds, ticks, chimes on the hour and half hour. It needs the correct time set. No clear date stamp. There is number on the clock plate of 890. All 6 pillars in great condition. Dimensions: Width 17″ x Depth 7″ x Height 11. Owning this Vintage Seth Thomas Mantel Clock is like owning a piece of living history, a reminder of the artistry and craftsmanship that once defined the world of horology. This beauty is an Adamantine clock. The material is a faux marble veneer, developed by Seth Thomas in the 1800s. A great piece for decor or for tinkering! Please review all pictures as condition is subjective. Do you believe price is a little high, no problem, the “Best Offer” option is activated. Please closely examine the listing and let me know if you have any questions, I’m happy to help! Pictures may not reflect true colors due to various lighting conditions. Smoke free and pet free environment. Be sure to add me to your favorites list – opens in a new window or tab! Thank you for stopping by my store and I hope you will visit again soon.

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Perfect for collectors or enthusiasts of maritime clock history, this piece reflects a bygone era of craftsmanship and seafaring tradition.

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The rare vintage Seth Thomas Adamantine mantle clock with ornate brass is a unique and collectible item dating back to the late 19th century. This antique clock features a rectangular shape with intricate brass detailing, adding a touch of elegance to any space. With its wind-up mechanism and inclusion of the original key, this piece is both functional and a beautiful decorative item for collectors of vintage clocks. The clock’s sturdy wood construction and chime feature make it not only a timeless piece but also a functional addition to any home or office decor. The winding mechanisms both work. The chime works – strikes the corresponding amount of times on each hour and one time on each half hour. The clock will start up but then stops after a minute or two so it will need some repair.

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Clock actually runs, i’m just not sure if it runs correctly. Pendulum swing stops eventually and not sure how to make the time right. But it does run and keeps a steady tick at the right angle when it’s properly positioned. Missing the suspension spring and leader, that’s why the pendulum stops swinging on it’s own.

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Beautiful unusual antique Seth Thomas brass and glass four-sided footed clock I think the pendulum is missing untested untouched what you see is what you get both doors work great double doors front and back beautiful clock super rare thank you, Justin. This Antique SETH THOMAS Brass & Glass Crystal Regulator Double Door Clock is a stunning piece of American craftsmanship from the early 1900s. The classic style crystal regulator features a brass and beveled glass case with a gold brass patina finish, showcasing the intricate details of French Victorian Art Deco Americana design. This 8-day clock movement, complete with a cathedral coil spring gong chime, is a true vintage treasure that would make a beautiful addition to any room in your home. Made in the USA by Seth Thomas Clock Company, this clock embodies the charm and elegance of a bygone era.

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Here is a recent estate find. This is a Rare Antique Working SETH THOMAS Fancy Victorian Brass and Glass Crystal Regulator Mantel Shelf Clock, made by The Seth Thomas Clock Company Thomaston Conn USA. It has a Beautiful Large Classic Style Footed Gilt Brass and Beveled Glass Case with Heavy Decorative Base with Matching Top with Art Nouveau Designs in High Relief. This Has a Clean Porcelain Dial with Arabic Style Numerals, Signed “Seth Thomas”. This Clock has a Seth Thomas Round Brass Mechanical 8 Day “Time and Strike” Key Wound Movement, with Cathedral Coil Spring Gong Chime. It is Signed “ST USA 48N”. There are 2 Winding Arbors, and It includes a Winding Key and Correct Glass Vial Regulator Pendulum. The Clock Measures approx. 12″ Tall x 7 1/2″ Wide x 6 1/4 Deep. The Clock is in Working Condition and Strikes Correctly. This will make a Stunning addition to your Home. This is in Good Cosmetic Condition, One Of The Side Glass Panels Has Some Corner Chips, Otherwise Fine! Don’t pass this one up!

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ORIGINALSETH THOMAS PILOT/DECK HOUSE MARITIME CLOCK WITH KEY. VINTAGE VY HEAVY BRASS CASE WITH SCREW ON COVER STAMPED ON BACK SIDE NO 10619. SCREW ON COVER FITS TIGHT HAS A BRIGHT CLEAR GLASS. DIAL GOOD PLUS A FEW AGED SPOTS BUT CLEAR AND BRIGHT 6- INCH DIAMETER. ORIGINAL HOUR MINUTE SECOND HANDS. RUNS AND KEEPS TIME FOR SEVERAL DAYS.

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No movement is included. The rim has some bends around its perimeter. The latch does not catch.

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Offered for sale is an antique Seth Thomas brass marine or bulkhead-style mechanical clock. Origin: Thomaston, Connecticut, United States. Movement type: One-day lever, time-and-strike movement. Escapement: Balance-wheel type rather than a pendulum. Case: Brass drum-style case with hinged glass bezel and mounting tabs. Dial: Silvered Roman-numeral dial with subsidiary seconds register. Approximate period: Late 19th to early 20th century. The exact catalog model and production year have not been confirmed because the movement was not removed from the case and no internal model number was located. Testing and Diagnostic Results. Both winding arbors were tested using a properly fitting universal clock key. Both arbors wind normally, produce audible ratchet clicks, and hold spring tension. The visible balance or escapement assembly located in the opening above the 12 moves slightly when additional winding tension is applied. The clock was held upright and gently rotated in an attempt to start the balance, but it did not begin sustained oscillation or produce continuous ticking. The clock does not presently run. The minute hand turns easily when advanced clockwise. No bell strike was heard while the hands were advanced during testing. Running duration, timekeeping accuracy, and strike sequence could not be tested. No internal disassembly, cleaning, lubrication, adjustment, or repair was attempted. No oil, penetrating fluid, or spray cleaner was applied to the movement. The exact cause of the non-running and non-striking conditions is unknown. Substantial age-related wear and loss to the original silvered dial finish. Numerous scratches, spots, discoloration, oxidation, and surface marks on the dial. Tarnish, patina, polishing marks, scratches, and general wear on the brass case. Areas of green oxidation or verdigris around portions of the case and hardware. Hands and subsidiary seconds hand are present. Hinged front bezel, latch, and mounting tabs are present. Original rear Seth Thomas paper label remains attached but is heavily worn, stained, cracked, and fragile. The clock measures approximately 6 3/4 inches across the case and approximately 3 1/2 inches deep, based on the photographed measurements. This clock is being offered in non-running condition as a restoration project. It should be considered in need of professional mechanical service or repair. No guarantee is made regarding the condition of the internal movement, mainsprings, balance staff, pivots, hairspring, strike mechanism, or other internal components. Please examine all photographs carefully for the exact cosmetic condition, construction, measurements, label details, and included components. The photographs are an important part of the description. Only the items shown in the listing photographs are included.

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Measuring approximately 11″ H x 6.5″ W x 3.5 D, this nautical timepiece has wonderful aged patina and authentic surface wear that adds to its maritime character. Please review all photos carefully for condition. Seth Thomas was one of America’s most important historic clockmakers, with roots dating to the early 19th century. Marine-style clocks such as this were designed around highly legible dials and robust mechanical construction. What makes this example particularly desirable is the combination of the large brass porthole-style case and separate external bell, a configuration considerably more visually striking than ordinary Seth Thomas mantel and wall clocks.

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