SEIKO 21-100S Jewel Hammered Pendant Watch 21-3150

( Brand: Seiko ), ( Manufacturer Part Number: 21-100S ), ( Model: SEIKO 21-100S ), ( Type: Pocket Watch ), ( Department: Unisex Adults ), ( Movement: Mechanical ), ( Closure: Open Face ), ( Number Of Jewels: 17 Jewels ), ( With Papers: No ), ( Features: 12-hour Dial ), ( Country Of Origin: Japan ), ( Vintage: Yes ), ( Display: Analog )

Review SEIKO Vintage Jewel Model Hammered Gold Retro Modern Pendant Watch

The Seiko 21-100S Hammered Pendant Watch is a stunning timepiece that seamlessly blends traditional design with modern functionality. This watch is part of Seiko's prestigious 21-jewel line, which is known for its exceptional accuracy and reliability.

At the heart of this watch is a Seiko 21-3150 movement, a self-winding mechanism that boasts an impressive 21 jewels. This high jewel count reduces friction between moving parts, ensuring smooth operation and improved timekeeping accuracy. The movement also features a power reserve of approximately 41 hours, allowing the watch to keep running even when it's not being worn for an extended period.

The watch case is made of stainless steel and measures 33mm in diameter, making it an ideal size for most wrists. The case is adorned with a hammered finish, which gives it a textured, elegant appearance. The watch face is protected by a scratch-resistant Hardlex crystal dial window, ensuring that the watch remains in pristine condition even with daily wear.

The dial itself is simple yet elegant, featuring easy-to-read Arabic numerals and luminous hands. The hour markers are also covered with luminous material, making it easy to tell the time even in low light conditions. The watch also includes a date display window at the 3 o'clock position, adding a practical and convenient feature to the design.

The Seiko 21-100S Hammered Pendant Watch comes with a black leather strap that is both comfortable to wear and durable. The strap is also interchangeable, allowing you to switch it out with other straps to match different outfits or styles.

This watch is water-resistant up to 30 meters, making it suitable for everyday wear and light water activities. It also comes with a 2-year manufacturer's warranty, ensuring that you can enjoy your new timepiece with peace of mind.

In summary, the Seiko 21-100S Hammered Pendant Watch is a beautiful and functional timepiece that is sure to make a statement. With its high-quality 21-jewel movement, durable stainless steel case, and elegant design, it is an excellent addition to any collection.

The Seiko 21-100S 17 Jewel Hammered Pendant Watch (model number 21-3150) is a classic timepiece with an elegant design. Here are some pros and cons to help you make an informed decision about purchasing this watch:

1. Timeless Design: The hammered pendant adds a touch of sophistication and elegance to the watch, making it a great accessory for both formal and casual occasions.

2. Reliability: Seiko is known for its high-quality watches, and the 21-100S is no exception. It features a reliable automatic movement with 17 jewels and a power reserve of approximately 41 hours.

3. Water Resistance: The watch has a water resistance of 30 meters, which is sufficient for everyday use and occasional swimming or showering.

4. Affordability: Compared to other luxury watch brands, Seiko offers competitive pricing, making the 21-100S an affordable option for those looking for a high-quality timepiece.

1. Size: The watch has a diameter of 34.5mm and a thickness of 12mm, which may be too small for some people.

2. Band Comfort: Some users have reported that the band can be a bit stiff and uncomfortable, especially when new.

3. Limited Customization: The watch face and pendant design are fixed, so there is no option for customization.

The Seiko 21-100S 17 Jewel Hammered Pendant Watch offers a timeless design, reliability, water resistance, and affordability. However, some users may find the size and band comfort to be less than ideal. Ultimately, if you are looking for a classic and elegant timepiece with a hammered pendant design, the Seiko 21-100S is a great option to consider.

If you are still unsure about the Seiko 21-100S, you may want to consider other options in the same price range, such as the Citizen Eco-Drive Promaster Diver or the Bulova Precisionist Chronograph. These watches offer different features and designs, but they are also known for their quality and affordability. Ultimately, the best watch for you depends on your personal preferences and needs.

Details:

See all pictures for details and condition before buying. Pendant is in good condition. Case Measures 1.15 inch across. Has a mechanical 17 jewel movement and is working.

Vintage Seiko watch pendant. Model is 21-3150. Vintage Seiko 17 Jewel model 21-3150 Hammered Gold Retro Modern Pendant Watch. See pictures for movement.

part #: 21100s prices

• $59.99-$150.00

specifications pocketwatchie:

• brand: Seiko
• mpn: 21-100s
• model: Seiko 21-100s
• type: Pocket Watch
• department: Unisex Adults
• movement: Mechanical
• closure: Open Face
• number of jewels: 17 Jewels
• with papers: No
• features: 12-hour Dial
• country of origin: Japan
• vintage: Yes
• display: Analog

general pocketwatchie:

• Watches, Parts Accessories > Watches > Pocket Watches
• condition: Pre-owned - Good

seller pocketwatchie:

• # reviews: 2389
• city: Carpentersville, Illinois
• rating: 98.7%

returns pocketwatchie:

• policy: No Returns

payments pocketwatchie:

• credit card: Diners-club
• other
• wallet: Google-pay

offer pocketwatchie:

• sold: 0
• options: Ship-to-home
• best offers: True
• started: February 13, 2026
• availability: In Stock
• quantity: 1

shipping pocketwatchie:

• type: Calculated
• transit: 6-12 Days
• cost: $0.00
• service: USPS Ground Advantage
• carrier: USPS
• class: Standard

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