====== Grand Seiko 45GS ======
The **45GS** was a high-end [[hand-wound]] mechanical watch from [[Seiko]].

Introduced in late [[1968]], the 45GS was intended to replace the now-legendary [[Grand Seiko 44GS]] as the lower-end [[hand-winding]] option in the [[Grand Seiko]] lineup. Both were produced by Daini Seikosha, the "second source" for Grand Seiko models. Like its predecessor, the 45GS was noted for its accuracy and beauty, with a simple time-only dial, though a date window was offered as an option. It lasted in production until [[1973]] but couldn't withstand the onslaught of quartz watches. The final 1973 models were "V.F.A." offerings modeled on the famous Astronomical Observatory Chronometer produced in 1969.

The 45GS featured the [[Hi-Beat]] 36,000 A/h [[Seiko 4500]] movement. Derived from the 18,000 A/h [[Seiko 4400]] movement, this would be the final classic ultra-high beat Grand Seiko model.

The 45GS was re-made by Seiko in 2000 as a special limited edition, SCVN001, with a [[Seiko 4S15|4S15 movement]].

===== Variants =====
There were four revisions of the Daini 4500 Grand Seiko watch 

  * 4520A (1968-1972) - GS standard official approval, no date
  * 4522A (1968-1972) - GS standard official approval, date
  * 4580A (1969-1973) - V.F.A., date
  * 4520A (1969) - Astronomical Observatory Chronometer official approval, no date

Like its predecessor, a [[King Seiko]] model was also produced.

===== See Also =====
  * [[Grand Seiko]]
  * [[Seiko]]

===== External Links =====
  * [[http://www.seiyajapan.com/pages/the-history-of-grand-seiko|The History of Grand Seiko]]


<WRAP ud ud_mod>

**Movement:**
  * [[Self-winding]] movement [[Seiko 4500]]
  * 25 [[jewels]]

**Case:**
  * [[Stainless steel]], optional 18k gold plating

**Dial:**
  * White
  * Applied indexes

**Functions:**
  * Hours, minutes, [[central seconds]]
  * Date optional
</WRAP>

{{tag>Watch_models Seiko_models Grand_Seiko_models}}