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Early vintage Seiko Lord Marvel 5740-8000 36,000 bph Hi-Beat Hand Winding 23 Jewels. Production date April 1967 with sought after Seahorse case-back. This is a very nice example of a very early 5740 as production only began in 1966.
In late 1966, Seiko introduced its own in house high-beat movement, the 23-jewel manual wind calibre 5740C. Rather than debut this achievement in one of its GS or KS watches Seiko choose to put its new high-beat calibre inside the Lord Marvel 5740-8000. Acknowledged as only the worlds' second 36,000bph movement, the LM 5740-8000 was manufactured between 1966 and 1977, this example produced right at the beginning of production in April 1967. The LM5740 was the 3rd generation Lord Marvel model, and represents the peak of that line. It is a quintessential 'grammar of design' watch, with clean lines, understated elegance, and a sophisticated, technologically advanced in-house manual wind Hi-Beat movement. The sweep of the second hand on these beautiful watches is mesmerising and truly a sight to behold.
Movement: Original, SEIKO Suwa 5740C - Fully serviced November 2020, test worn for 24 hours & keeping chronometer grade time during inspection. Please see photos of watch on timegraher for readings. Accuracy shown cannot be guaranteed but +/- 10 s/d is our benchmark for serviced watches. Not guaranteed water resistant.
Dial: Silver/white Sunburst in excellent condition, some minor age related spotting only really visible under magnification.
Glass: Acrylic, excellent
Hands: Two tone original - Excellent
Case: Original, unpolished stainless steel, minor age related wear with some noticeable scuffing on the lower edge of the bottom right lug. This could easily be polished out, however I prefer the new owner to make the decision. Seahorse case-back with long service inscription in Kanji which reads "A gift in commemoration of 15 years continued service" - (company name) OI SEISAKUSHO Co., Ltd
Beat Rate: 36,00bph
Diameter: Approx. 34.5mm
Lug width: 19mm
Band: New, black leather
Crown: Original, well fitted
Year and location of manufacture - April 1967 - Serial No.7403830 - Japan SEIKO Suwa