A distinctive vintage Seiko manual-winding dress watch featuring a professionally redialed light-blue/turquoise dial with silver-toned baton markers and matching hands. The dial carries the traditional “PARASHOCK” and “17 JEWELS” markings, giving the watch a classic period-inspired appearance with a distinctive contemporary color treatment.
The watch is powered by a Seiko Caliber 66 manual-winding mechanical movement with 17 jewels and is housed in a polished stainless steel round case.
Its stainless steel screw-down case back carries the Seiko reference 66-7970 and serial number 270700, providing important identification details for this vintage Seiko example.
The watch is paired with a black leather strap and matching steel pin buckle, creating a clean and understated dress-watch configuration.
This example is presented in vintage pre-owned condition with a redialed dial. The case shows minor signs of age and wear, while the manual-winding movement is currently running.
⸻
Collector’s Note
Vintage Seiko manual-winding watches represent an important period in Japanese mechanical watchmaking, with Seiko producing a wide range of practical mechanical timepieces during the mid-20th century.
This example is particularly distinctive because of its light-blue/turquoise redial. The dial has been refinished and should therefore not be considered an original factory Seiko dial.
The stainless steel case, Seiko manual-winding movement and original case-back identification provide the vintage foundation of the watch, while the redial gives it its current visual character.
For collectors, the dial originality should be taken into consideration when evaluating this piece.
⸻
Specifications
* Brand: Seiko
* Collection / Series: Parashock
* Reference: 66-7970
* Serial Number: 270700
* Movement: Seiko Caliber 66
* Movement Type: Mechanical — Manual Winding
* Jewels: 17 Jewels
* Dial: Light-Blue / Turquoise Redial
* Dial Status: Professionally Redialed / Refinished
* Markers: Silver-Toned Baton Indices
* Hands: Silver-Toned Hands
* Dial Markings: PARASHOCK, 17 JEWELS
* Case: Stainless Steel Round Case
* Case Finish: Polished
* Case Back: Stainless Steel Screw-Down Case Back
* Strap: Black Leather Strap
* Buckle: Steel Pin Buckle
* Crystal: Acrylic / Mineral Glass*
* Origin: Japan
*Crystal material should be confirmed against the physical watch if not already verified.
⸻
Case Back
The stainless steel case back carries the following identification details:
* SEIKO
* Reference: 66-7970
* Serial Number: 270700
* Stainless Steel Case Markings
* Period Seiko Case-Back Markings
The six-digit serial number 270700 should be treated as an identification detail. Seiko’s historical serial-number conventions can require additional evidence to establish an exact production year, particularly where production-year digits were reused across decades.
⸻
Movement
The watch is powered by a Seiko Caliber 66 manual-winding mechanical movement.
* Caliber: Seiko 66
* Movement Type: Manual Winding
* Jewels: 17 Jewels
* Power: Hand-Wound Mechanical
* Function: Timekeeping
The movement is manually wound through the crown. As with any vintage mechanical movement, running condition and accuracy can depend on previous servicing, lubrication and internal wear.
The movement is currently running, but its service history should be considered unknown unless documented otherwise.
⸻
Dial
Redial Disclosure
The watch features a professionally redialed light-blue/turquoise dial.
The dial includes:
* Light-blue / turquoise refinished surface
* Silver-toned baton markers
* Matching silver-toned hands
* Sweep seconds hand
* PARASHOCK marking
* 17 JEWELS marking
* Seiko branding
The dial is a redial and is not represented as an original factory Seiko dial.
This disclosure is important for collectors evaluating originality.
⸻
Case
The watch features a classic round stainless steel case with a polished finish.
The case provides a traditional vintage dress-watch profile and is paired with a stainless steel screw-down case back carrying the reference and serial information.
The case shows minor signs of age and previous use consistent with a vintage pre-owned watch.
⸻
Strap & Buckle
The watch is fitted with:
* Black leather strap
* Steel pin buckle
The leather strap provides a classic dress-watch appearance and complements the light-blue/turquoise dial.
The strap and buckle are considered wearable components and may show signs of previous use.
⸻
Condition
Vintage Pre-Owned Condition — Redialed Dial
The watch is presented in vintage pre-owned condition.
The watch retains its vintage:
* Seiko stainless steel case
* Seiko manual-winding movement
* Stainless steel case back
The dial has been professionally redialed/refinished in a light-blue/turquoise tone and should not be considered an original factory Seiko dial.
The case shows minor surface wear and signs of age consistent with a vintage mechanical watch.
The manual-winding movement is currently running. However, timekeeping accuracy and power reserve can vary depending on the movement’s service history and internal condition.
The watch is fitted with a black leather strap and steel pin buckle.
Please refer carefully to all product photographs, as they form an important part of the condition description.
⸻
Why You’ll Love It
* Distinctive vintage Seiko manual-winding dress-watch profile
* Eye-catching light-blue/turquoise redial
* Silver-toned baton markers
* Classic PARASHOCK and 17 JEWELS dial markings
* Seiko Caliber 66 manual-winding mechanical movement
* 17-jewel mechanical movement
* Stainless steel round case
* Original case-back reference 66-7970
* Serial number 270700
* Black leather strap
* Steel pin buckle
* Unique vintage appearance
* A characterful addition to a collection of vintage Japanese mechanical watches
⸻
Important Note
Due to the age and nature of vintage manual-winding mechanical movements, timekeeping performance may vary and may not meet the accuracy standards of modern quartz watches.
The movement should ideally be inspected and serviced by a qualified watchmaker if its recent service history is unknown. Vintage mechanical movements can require periodic servicing to maintain stable performance.
Although the movement is currently running, this should not be interpreted as a guarantee of future accuracy, power reserve or service condition.
Dial Originality
The dial is redialed/refinished and is not represented as an original factory Seiko dial.
The light-blue/turquoise color and dial finish are part of the redial treatment. Collectors should take this into consideration when evaluating the originality and value of the watch.
Water Resistance
The watch should not be assumed to be water-resistant.
Vintage gaskets, seals, crystal, crown and case-back components naturally deteriorate with age. Unless specifically stated otherwise, the watch has not been pressure-tested.
Avoid water and moisture exposure. Swimming, bathing and diving are not recommended.
All measurements are approximate. Please examine all product photographs carefully before purchase, as photographs form an important part of the condition description.
