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SEIKO 310PA5LN03 Hardlex Crystal SKZ221J1 - 7S36-02K0
SEIKO 310PA6JN03 Hardlex Crystal PF3341X1 - 7T62-X079
SEIKO 310PA7LN03 Hardlex Crystal SRP501K1 - 4R36-02S0
SEIKO 310PB2HN02 Hardlex Crystal SND469P1 - 7T92-0ET0
SEIKO 310PB3JN02 Hardlex Crystal SNZJ03J1 - 7S36-04M0
SEIKO 310PB4JB0B Hardlex Crystal SNA503P1 - 7T62-0EV0
SEIKO 310PB4JC0B Hardlex Crystal SNAA17P1 - 7T62-0GV0
SEIKO 310PB4JN02 Hardlex Crystal SPL029J1 - 5T82-0AF0
SEIKO 310PB6JN02 Hardlex Crystal SKA453P9 - 5M62-0CE0
Sold outSEIKO 310PB7LN03 Hardlex Crystal SRP201J1 - 4R36-00S0
SEIKO 310PB8JN02 Hardlex Crystal SGEB53J1 - 7N42-0CD0
Sold outSEIKO 310PC1HN02 Hardlex Crystal SRP233J1 - 4R36-00T0
SEIKO 310PC2JN02 Hardlex Crystal SBDJ033 - V157-0CB0
SEIKO 310PC4HN02 Hardlex Crystal FBNL992 - 7N32-0CT0
SEIKO 310PC6JN02 Hardlex Crystal 7T62-0FT0
SEIKO 310PC7HN01 Hardlex Crystal SBDY129 - 4R35-06K0
SEIKO 310PC9SB0A Sapphire Crystal SSC961J8 - V192-00A0
SEIKO 310PD2SN02 Sapphire Crystal SBHV001 - 7L22-0AK0
SEIKO 310PD6HN02 Hardlex Crystal SNA759J1 - 7T62-0GM0
Sold outSEIKO 310PE4JN02 Hardlex Crystal SNAB41P1 - 7T62-0HK0
SEIKO 310PE8JN02 Hardlex Crystal SKA445P1 - 5M62-0CF0
SEIKO 310PF2TN01 Hardlex Crystal SGE368F1 - 7N42-F100
SEIKO 310PX5JN02 Hardlex Crystal SMA149P1 - 5J22-0D50
SEIKO 310PX5JN03 Hardlex Crystal 5J22-0D50
Sold outSEIKO 310PX5SN02 Sapphire Crystal SBDY099 - 4R35-04J0
SEIKO 310PX6HN03 Hardlex Crystal SKZ259J1 - 7S36-03G0
Sold outSEIKO 310PX6SB0A Sapphire Crystal SPB079JC - 6R15-04G0
SEIKO 310PX6SB0B Sapphire Crystal SBPK001 - 5K65-0AA0
SEIKO 310PX6SN02 Sapphire Crystal SBDC083 - 6R35-00A0
SEIKO 310PX6TNC3 Hardlex Crystal SDWA61P1 - 7T32-7D10
SEIKO 310PX7S20A Sapphire Crystal SBDC175 - 6R35-02C0
SEIKO 310W17GN00 Hardlex Crystal 4633-8039
SEIKO 310W17L50A Hardlex Crystal SKXW61H1 - 7S26-3210
SEIKO 310W17L50B Hardlex Crystal SKXW59H1 - 7S26-3210
Sold outSEIKO 310W17L50C Hardlex Crystal SKX447K1 - 7S26-3040
SEIKO 310W17SN00 Sapphire Crystal 310W17SN00
SEIKO 310W19GN00 Hardlex Crystal 310W19GN00
SEIKO 310W19LN00 Hardlex Crystal WCZ019J1 - 4633-8049
SEIKO 310W21GN00 Hardlex Crystal SCW187P1 - 7009-9000
SEIKO 310W23GN00 Hardlex Crystal 7019-5140
SEIKO 310W25LN00 Hardlex Crystal SCW271P1 - 7009-8390
SEIKO 310W27LN00 Hardlex Crystal 7123-8460
Sold outSEIKO 310W29LN00 Hardlex Crystal Y652-900A
Sold outSEIKO 310W31LN00 Hardlex Crystal 7009-3090
SEIKO 310W34GN00 Hardlex Crystal FCS050 - 6306-8020
SEIKO 310W36GA00 Hardlex Crystal 310W36GA00
SEIKO 310W36GN Hardlex Crystal 6309-8069
SEIKO 310W36GN00 Hardlex Crystal WCM085J1 - 0903-8169

Genuine Watch Parts & Components for Seiko, Citizen, and More – Available at WatchPlaza

Welcome to WatchPlaza, your trusted source for authentic replacement watch parts for Seiko, Citizen, and other leading watch brands. Whether you're a professional watchmaker, a collector, or a DIY enthusiast, you'll find a vast and carefully curated selection of genuine parts to repair, restore your watch with confidence.

🔧 What You'll Find in Our Watch Parts Collection

We stock thousands of new and original spare parts, with a primary focus on Seiko watches. Our catalog includes both modern and vintage components for a wide range of models, including mechanical, automatic, and quartz timepieces.

You can shop the following categories:

  • Dials – Classic, modern, diver-style, and limited edition watch dials

  • Bezels & Lunettes – Including complete bezel assemblies and bezel inserts

  • Hands (Pointers) – Hour, minute, and second hands in various designs and lume types

  • Chapter Rings & Dial Rings – For precise alignment and aesthetic enhancement

  • Watch Cases – Complete case sets or individual case components

  • Crowns & Stems – For setting time and winding the movement

  • Crystals – Flat, domed, or curved glass in sapphire, Hardlex, or mineral

  • Movements – Complete calibers and individual components (e.g., rotors, bridges, wheels)

  • Shrouds / Case Protectors – Often used in diver or sports models

  • Click Springs & Ratchets – Key parts for rotating bezels and mechanical functions

  • Gaskets / O-Rings – Ensure water resistance and case sealing

  • Pins & Spring Bars – To attach straps or bracelets securely

  • Screws, Pushers, Battery Covers – Small but essential components for fine repairs

  • Watch Straps & Bracelets – Leather, rubber, steel, and titanium options

We’re continuously adding new stock, so be sure to check back often for updates.


🧭 Understanding Watch Parts: The Anatomy of a Timepiece

Every wristwatch, no matter how simple or advanced, consists of multiple interdependent components. Here's a breakdown of the most essential ones:

1. Movement / Caliber

The movement is the internal engine of the watch, responsible for keeping accurate time and powering additional features. Movements may be:

  • Quartz – Battery-powered and extremely accurate

  • Mechanical – Powered by a mainspring and regulated by a balance wheel

  • Automatic – Self-winding via the wearer's motion

  • Spring Drive (Seiko) – A unique hybrid combining quartz regulation with mechanical power

2. Dial (Watch Face)

The dial shows the time and often includes:

  • Hour markers, subdials, and date windows

  • Decorative elements such as sunburst finishes, textures, or applied indices

3. Hands

Available in various shapes and finishes (sword, dauphine, baton, etc.), watch hands indicate the time and can reflect the design era or type (diver, dress, pilot).

4. Case

The case protects the movement and other internal components. Materials vary from:

  • Stainless steel

  • Titanium

  • Ceramic

  • Plastic or resin (in sport watches)

5. Crystal

The transparent cover that protects the dial. Options include:

  • Hardlex – A hardened mineral crystal developed by Seiko

  • Sapphire – Extremely scratch-resistant

  • Acrylic – Lightweight and shatter-resistant

6. Crown

Located on the side of the case, the crown allows users to wind the watch, set the time, and, in some models, adjust complications.

7. Case Back & Gaskets

Often screwed or snapped on, the case back includes gaskets to ensure water resistance. Transparent case backs reveal the movement in display models.

8. Straps / Bracelets

Connect the watch to your wrist. Common materials include:

  • Leather (smooth, crocodile, suede)

  • Stainless steel (Oyster, Jubilee, mesh)

  • Rubber or silicone (ideal for sports and diving)

  • NATO and Zulu (durable, military-style options)


🕰️ Most Essential Watch Parts for Functionality

While all parts are important, the following are particularly crucial for a functioning, wearable watch:

  • Movement / Caliber – The heart of the watch

  • Dial & Hands – For time display and aesthetic identity

  • Crystal – Protects the dial and hands

  • Crown – For manual control of time and date

  • Case – The housing that secures everything

  • Strap or Bracelet – Keeps the watch on your wrist


📦 Where to Buy Watch Parts

1. Online Retailers

Reputable sites like WatchPlaza.com specialize in brand-specific watch parts. We offer a secure shopping experience, fast worldwide shipping, and verified original parts.

2. Watchmakers & Repair Shops

Watch repair professionals often have access to rare or discontinued parts, especially for vintage models.

3. Authorized Brand Service Centers

If you own a luxury or high-end model, always go through the brand's authorized service center to preserve authenticity and warranty.

4. Auction Platforms (with caution)

Websites like eBay may offer rare components, but always verify the seller’s reputation and part authenticity.

5. Salvage or Vintage Markets

Useful for finding hard-to-source or discontinued components, but be wary of quality and condition. 


🔍 What You Can Get at WatchPlaza

At WatchPlaza.com, we focus heavily on Seiko parts, offering everything from:

  • 6R15, 4R35, NH35, NE15 movements

  • SARB, SKX, Sumo, Turtle, Samurai and other iconic model components

  • Bezel inserts, chapter rings, crown tubes, movement spacers, and more

We also stock:

  • Citizen parts, including Eco-Drive movements, dials, crystals, and crowns

  • Select parts for Breil, Pulsar, Lorus, Diesel, Fossil, Armani, Casio, Burberry, DKNY, Zodiac, Michael Kors, Guess, and others


📩 Can’t Find What You’re Looking For?

If a specific part is not listed, feel free to contact us directly with a product request. Our team will do its best to locate or suggest a suitable alternative from our extensive inventory.