====== Seiko 75RW ======

{{wst>author|[[Foskett, Stephen|Stephen Foskett]] ([[https://grail-watch.com/|Grail Watch]])}}

**Type 75RW** was a [[quartz]] [[railway watch]] produced by [[Seiko]] and used by the Japanese National Railway starting in [[1980]]. It would remain the standard until the introduction of the [[Seiko SVBA|SVBA001]] in [[1987]].

===== Overview =====
Seiko had produced [[railway watch]]es since [[1929]], with the [[Seiko Type 19|Type 19]] becoming famous across Japan and seen in every railway cabin. It had been updated over the years, notably from 7 to 15 jewels and with [[hacking seconds]], but was outdated by the 1970s. The Type 19 was discontinued in November, [[1971]]. In [[1972]], Seiko began producing a railway watch, the [[Seiko 61RW|Type 61RW]] using [[Seiko 6100|Cal. 6110A]], and this was the standard until [[1980]].

As Seiko gained confidence in their [[quartz]] movements, they began developing a quartz model, the [[Seiko 38RW|Type 38RW]]. But this was not adopted and production began and ended in [[1976]]. [[Seiko 75|Cal. 7550A]] was a more modern third-generation quartz movement and was adopted for the next railway watch. Despite offering lower accuracy than [[Seiko 38|Cal. 3870A]] (15 seconds per month rather than 10), Cal. 7550A boasted longer battery life and cheaper construction.

Type 75RW was introduced in January [[1978]], the same month the [[Seiko 61RW|Type 61RW]], with sales starting in March. Another mechanical model, [[Seiko 63RW|Type 63RW]], was also introduced in August of that year. The National Railway selected the quartz Type 75RW in [[1980]], and the mechanical offering was discontinued. Production of the quartz Type 75RW continued until [[1987]], when a high-precision quartz model, [[Seiko SVBA|SVBA001]], was added. This would be the final Seiko Japan National Railway watch to date.


{{tag>Watch_models Pocket_watches Railway_watches Quartz_watches Seiko_models Seiko_railway_watches}}