52KS
King Seiko 52KS was the final King Seiko luxury watch from
Seiko, available from 1971 to about 1975.
Suwa factory produced the final line of high-end watches, the King Seiko 56KS
and Grand Seiko 56GS beginning in 1969, leaving Daini factory to develop perhaps
the last high-end mechanical watch to be made by the company. This was King Seiko 52KS, and Daini worked to make it special. In fact, some
models left the factory with "Special" and "Very Fine Accuracy" ("V.F.A.")
adjustments, making them some of the most accurate mechanical watches
ever produced. (Watch
Wiki)
| Number of entries per catalog | 4 | 8 | 4 | 3 | 0 | 0 | 3 | 3 | |||
| 5256 | Catalog description | Technical data [1] | 1971 #2 | 1972 | 1973 #1 | 1973 #2 | 1974 #1 | 1974 #2 | 1975 #1 | 1975 #2 | |
5256-8000
52KWL 070 NBR010 |
Automatic winding Second hand hacking Fine adjustment Japanese-English calendar Hi-Beat Hardlex crystal |
Case: SS Diameter: 36mm Thickness: 10mm Lug to lug: 41mm Dial: white |
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 |
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5256-8010 52KWL 060 NBR020 |
Automatic winding Second hand hacking Fine adjustment Japanese-English calendar Hi-Beat Hardlex crystal |
Case: SS Diameter: 36mm Thickness: 9,5mm Dial: white |
 |
 |
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5256-8010 52KWL 0067 NBR800 |
Automatic winding Second hand hacking Fine adjustment Japanese-English calendar Hi-Beat Hardlex crystal |
Case: SGP Diameter: 36mm Thickness: 9,5mm Dial: gold linen |
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 |
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| 5246 | Catalog description | Technical data [1] | 1971 #2 | 1972 | 1973 #1 | 1973 #2 | 1974 #1 | 1974 #2 | 1975 #1 | 1975 #2 | |
5246-6000
52KWM 010 |
Chronometer Automatic winding Second hand hacking External slow/fast Fine adjustment Japanese-English calendar Instant day change Quickset day/date Hi-Beat Hardlex crystal |
Case: SS Diameter: 35mm Thickness: 9mm Lug to lug: 40mm Dial: linen |
 |
 |
 |
 |
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5246-6000
52KWM 014 |
Chronometer Automatic winding Second hand hacking External slow/fast fine adjustment Japanese-English calendar Instant day change Quickset day/date Hi-Beat Hardlex crystal |
Case: SS Diameter: 35mm Thickness: 9mm Lug to lug: 40mm Dial: black |
 |
 |
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5246-6010
52KWM 020 |
Chronometer Automatic winding Second hand hacking External slow/fast fine adjustment Japanese-English calendar Instant day change Quickset day/date Hi-Beat |
Case: SS Dial: white |
 |
 |
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5246-6060 52KWM 044 |
Chronometer Automatic winding Second hand hacking External slow/fast fine adjustment Japanese-English calendar Instant day change Quickset day/date Hi-Beat Hardlex crystal |
Case: SS Diameter: 35mm Dial: blue |
 |
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5246-7000 52KWM 034 |
Chronometer Automatic winding Second hand hacking External slow/fast fine adjustment Japanese-English calendar Instant day change Quickset day/date Hi-Beat Hardlex crystal |
Case: SS Dial: grey linen |
 |
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| 5245 | Catalog description | Technical data [1] | 1971 #2 | 1972 | 1973 #1 | 1973 #2 | 1974 #1 | 1974 #2 | 1975 #1 | 1975 #2 | |
| 5245-6000 52KCM 010 |
Chronometer Automatic winding Second hand hacking External slow/fast fine adjustment Instant day change Quickset day Hi-Beat Hardlex crystal |
Case: SS Diameter: 35mm Thickness: 9mm Lug to lug: 39mm Dial: linen |
 |
 |
 |
 |
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5245-6000 52KCM 014 |
Chronometer Automatic winding Second hand hacking External slow/fast fine adjustment Instant day change Quickset day Hi-Beat Hardlex crystal |
Case: SS Diameter: 35mm Thickness: 9mm Lug to lug: 39mm Dial: black |
 |
 |
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5245-6010 52KCM 020 |
Chronometer Automatic winding Second hand hacking External slow/fast fine adjustment Instant day change Quickset day Hi-Beat |
Case: SS Dial: silver |
 |
 |
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5245-7000 52KCM 034 |
Chronometer Automatic winding Second hand hacking External slow/fast fine adjustment Instant day change Quickset day Hi-Beat Hardlex crystal |
Case: SS Dial: grey linen |
 |
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[1]. The technical data is not present in Seiko catalogs. Our main source is A King Seiko elfeledett története - The Forgotten Story of King Seiko, by Róbert Sipos.
| 52KS & VANAC replacement numbers: crystal | crown | |
| 5245-6000 | 285V03GN | |
| -6010 | 290T01AN | |
| -7000 | 290V01GC | |
| 5246-5000 | K00V05GN | |
| -5010 | SA0W33AN | |
| -5020 | ES0V07GC | 45W51N |
| -5030 | SA0W57AN | |
| -5040 | ES0V11GC | 45W37N |
| -6000 | 285V03GN | 45M09N |
| -6010 | 290T01AN | 45M09N |
| -6020 | 290T01AN | |
| -6030 | 285V11GC | 45M11NG |
| -6040 | 285V23GC | 45M11N |
| -6041 | 285V23GC | 45M11N |
| -6050 | 285V19GC | 45M11N |
| -6061 | 285V19GC | 45M11N |
| -6060 | 285V25GC | 45M09N |
| -6070 | 285V29GC | 45M11N |
| -7000 | 290V01GC | 45M09N |
| 5256-5000 | ES0V13GC | 45W51N |
| -5010 | ES0W23GC | 45W51N |
| -6000 | 285V49GC | 50M29N |
| -6010 | 285V51GC | 50M29NG |
| 5256-8000 | 290G05GA | 45M11N |
| -8010 | 290G05GA | 50M29N |