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7a28

  1. Vintage Seikos for sale ($225 for the remaining group; individual prices within)

    SEIKO & CITIZEN TRADING POST
    Vintage Seikos for sale - $150 for both I’ve got a small group of vintage Seikos up for grabs. All prices are shipped, CONUS. Happy to answer any questions; don’t hesitate to ask. — 6619-8290 - $150 This handsome fella has the vibe of an Omega Constellation with its fluted bezel. Keeps good...
  2. FS - Seiko Chronograph Quartz SPR027 Ref. 7a28-707A - us$150

    SEIKO & CITIZEN TRADING POST
    SOLD - Seiko Chronograph Quartz SPR027 Ref. 7a28-707A - us$140 Up for sale : - Seiko Chronograph ref. 7a28-707A - High Grade Movement cal.7a28 with 15 Jewels - All normal Condition - Full Link Bracelet - Hairy Scratch on crystal and case - Watch only - Unknown Service history and water...
  3. coil / stepper motor function in 7a28 and the like

    WATCHMAKING & TINKERING
    Attention quartz movement experts: what kind of signaling is coming from the chip on a 7a28 to drive each of the 4 trains? Is it just pulsing the coil in an alternating polarity to ratchet it forward one tick? I'm familiar with larger unipolar steppers like you'd have on a 3D printer, but was...
  4. FS: Seiko 7A28-7049 Quartz Chrono - $400 (Reduced)

    SEIKO & CITIZEN TRADING POST
    FS: SOLD Seiko 7A28-7049 Quartz Chrono - $350 obo Up for sale is a gorgeous Seiko 7A28-7049 quartz chronograph Sports 100. This watch is reminiscent of the classic Omega Speedmaster Professional. Black 39mm dial. Rotating click bezel. Includes original bracelet and Seiko-signed clasp. Will...
  5. WTB: Seiko 7A28-7020 / James Bond watch

    SEIKO & CITIZEN TRADING POST
    I am looking to buy a Seiko 7A28-7020/James Bond watch with the white dial. Please let me know if you have one for sale.
  6. WTB Link(s) or band for 7a28-7060 or 7a28-7069

    SEIKO & CITIZEN TRADING POST
    Recently bought a Seiko 7a28-7069 titanium sports 100, but unfortunately the band is one link too small and I am super bummed. Desperately in need of at least 1 link, or even a full band (b1094), for the titanium PVD bracelet that came on the 7a28-7060 or 7a28-7069 Thank you:D
  7. 7A28-7040 - A bag of wonders!

    WATCHMAKING & TINKERING
    Well, one wonder specifically. I had bought this 7A28 in "used condition, not running". Well- it DID run, after a fashion. Seconds did the battery-is-empty two-step, the big chrono hand went 'round, but the 1/10th hand did not at first, then it started and stopped... Minute counter did...
  8. 7A28-7000 "Aliens" - replacement pushers

    THE JAPANESE WATCH DISCUSSION FORUM
    Hi all - new to the boards and very quickly getting into the world of collectable watches... I bought a 7A28-7000 'Black Ripley' as an engagement gift for my (now) fiancee. She's over the moon with it and wears it every day, which I think is cool for something that she'll have forever a...
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