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SEIKO 310P02S20C Sapphire Crystal SNZ433J1 - 7S36-00N0
SEIKO 310P02S20E Sapphire Crystal SNZ440J1 - 7S36-00N0
SEIKO 310P02SB0A Sapphire Crystal SNG023P1 - 5J32-0AH0
SEIKO 310P02SC0A Sapphire Crystal SNG029J1 - 5J32-0AH0
SEIKO 310P02SE0A Sapphire Crystal SGEE45J1 - 7N42-0EE0
SEIKO 310P02SF0A Sapphire Crystal SSC847J1 - V175-0DY0
SEIKO 310P02SN02 Sapphire Crystal SRP250J1 - 4R36-00L0
SEIKO 310P02SN03 Sapphire Crystal 4R36-00L0
Sold outSEIKO 310P03HB0A Hardlex Crystal SNA557P1 - 7T62-0FD0
Sold outSEIKO 310P03HN02 Hardlex Crystal 5J22-0AD0
SEIKO 310P03HN03 Hardlex Crystal SMA209P1 - 5J22-0AD0
Sold outSEIKO 310P03LN02 Hardlex Crystal SNQ007P1 - 6A32-00B0
SEIKO 310P03LN03 Hardlex Crystal H022-6000
Sold outSEIKO 310P03SN02 Sapphire Crystal SBWV001 - 5T24-0AA0
Sold outSEIKO 310P04HN02 Hardlex Crystal 7T62-0JN0
SEIKO 310P04HN03 Hardlex Crystal 9M21-9000
Sold outSEIKO 310P04JN02 Hardlex Crystal 7T92-0CM0
Sold outSEIKO 310P04LN02 Hardlex Crystal SRP279J1 - 4R36-01C0
Sold outSEIKO 310P04LN03 Hardlex Crystal 310P04LN03
Sold outSEIKO 310P05HN03 Hardlex Crystal SILAQ001 - VD67-0010
SEIKO 310P09LN03 Hardlex Crystal 310P09LN03
SEIKO 310P10LR03 Hardlex Crystal PAR077X1 - YT57-X018
SEIKO 310P21HB0A Hardlex Crystal SNA119P1 - 7T62-0BJ0
SEIKO 310P21HN02 Hardlex Crystal SKA441P9 - 5M62-0CD0
SEIKO 310P21HN03 Hardlex Crystal 6M23-8010
SEIKO 310P21LN02 Hardlex Crystal V657-0A60
SEIKO 310P21LN03 Hardlex Crystal 310P21LN03
Sold outSEIKO 310P23HN03 Hardlex Crystal SJC020J1 - 6M15-9000
Sold outSEIKO 310P25H20C Hardlex Crystal PYQ010P1 - V682-6010
SEIKO 310P26SB0B Sapphire Crystal SAGV001 - 7D48-0AC0
Sold outSEIKO 310P37S20A Sapphire Crystal 310P37S20A
SEIKO 310P41SN02 Sapphire Crystal 310P41SN02
SEIKO 310P43HN02 Hardlex Crystal SNW005J1 - 7S25-00B0
SEIKO 310P43LN03 Hardlex Crystal SSA001J1 - 4R37-00B0
SEIKO 310P44SB0A Sapphire Crystal SBDL00C - V192-0AF0
SEIKO 310P45S20A Sapphire Crystal SBDS001 - 6S37-0010
SEIKO 310P49HN03 Hardlex Crystal SBDA001 - 7S25-00D0
SEIKO 310P50HN03 Hardlex Crystal SDWB09P1 - 7T32-7C20
SEIKO 310P55SN02 Sapphire Crystal SARB007 - 6R15-00A0
SEIKO 310P61HN02 Hardlex Crystal SRP637J1 - 4R36-03Z0
SEIKO 310P67SN02 Sapphire Crystal SRPD97J1 - 4R35-03L0
SEIKO 310P69S20A Sapphire Crystal SBDC115 - 6R35-01B0
SEIKO 310P73SN0A Sapphire Crystal SDKS001 - 6R31-00D0
SEIKO 310PA0JN02 Hardlex Crystal SGEA49P1 - 7N42-0BM0
SEIKO 310PA1LN03 Hardlex Crystal SKZ207J1 - 7S36-01E0
Sold outSEIKO 310PA3JN03 Hardlex Crystal H023-00F0
SEIKO 310PA3LN03 Hardlex Crystal SRP163J1 - 4R36-00B0
SEIKO 310PA4JN02 Hardlex Crystal SND277P1 - 7T92-0DB0

Genuine Watch Parts & Components for Seiko, Citizen, and More โ€“ 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.

๐Ÿ”ง 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 โ€“ Classic, modern, diver-style, and limited edition watch dials

  • Bezels & Lunettes โ€“ Including complete bezel assemblies and bezel inserts

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

  • Chapter Rings & Dial Rings โ€“ For precise alignment and aesthetic enhancement

  • Watch Cases โ€“ Complete case sets or individual case components

  • Crowns & Stems โ€“ For setting time and winding the movement

  • Crystals โ€“ Flat, domed, or curved glass in sapphire, Hardlex, or mineral

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

  • Shrouds / Case Protectors โ€“ Often used in diver or sports models

  • Click Springs & Ratchets โ€“ Key parts for rotating bezels and mechanical functions

  • Gaskets / O-Rings โ€“ Ensure water resistance and case sealing

  • Pins & Spring Bars โ€“ To attach straps or bracelets securely

  • Screws, Pushers, Battery Covers โ€“ Small but essential components for fine repairs

  • Watch Straps & Bracelets โ€“ Leather, rubber, steel, and titanium options

Weโ€™re continuously adding new stock, so be sure to check back often for updates.


๐Ÿงญ 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 โ€“ Battery-powered and extremely accurate

  • Mechanical โ€“ Powered by a mainspring and regulated by a balance wheel

  • Automatic โ€“ Self-winding via the wearer's motion

  • Spring Drive (Seiko) โ€“ 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 โ€“ A hardened mineral crystal developed by Seiko

  • Sapphire โ€“ Extremely scratch-resistant

  • Acrylic โ€“ 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)


๐Ÿ•ฐ๏ธ Most Essential Watch Parts for Functionality

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

  • Movement / Caliber โ€“ The heart of the watch

  • Dial & Hands โ€“ For time display and aesthetic identity

  • Crystal โ€“ Protects the dial and hands

  • Crown โ€“ For manual control of time and date

  • Case โ€“ The housing that secures everything

  • Strap or Bracelet โ€“ Keeps the watch on your wrist


๐Ÿ“ฆ 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 sellerโ€™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.ย 


๐Ÿ” 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


๐Ÿ“ฉ Canโ€™t Find What Youโ€™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.