Vintage 1970 JAPAN KING SEIKO CALENDAR 5625-7080 25Jewels Automatic.

Vintage 1970 JAPAN KING SEIKO CALENDAR 5625-7080 25Jewels Automatic.

Welcome to my auction!

Item description

Movement :

• Pet name : 56 KING SEIKO CALENDAR.
• Caliber number : 5625A,B.
• Movement : Automatic.
• Beat rate : 28800bph.
• Year of manufacture start : 1968's.
• Factory : Suwa.

Externals :

• Serial No. : 001607.
• Dial No. : JAPAN 5625-7080T.
• Glass : Crystal.
• Case size : About 37mm.
• Lug width : 18mm.
• Band : New Leather Strap of SEIKO original.

Condition :

• Used, it runs well.
• Quick set(Day/Date) : Okay.
  Set of the date : The set at one stage pulling the crown.
• The day difference time of an used watch is about +-1 minute / day.
• For practical, everyday use, it would be advisable to have the movement cleaned and oiled.

Key Features

• The Sovereign Peak of 1970 Executive Luxury (1970): Manufactured in 1970—a landmark historical year defining the turn of the decade during Japan's peak post-war industrial supremacy—the King Seiko Calendar reference 5625-7080 represented Suwa Seikosha's definitive high-beat executive flagship. Positioned alongside Grand Seiko, this reference embodied the absolute pinnacle of luxury daily mechanical watchmaking for corporate leaders during the late Showa era.
• The High-Performance High-Beat 25-Jewel Caliber 5625 Engine: Powering this landmark instrument is the celebrated 25-jewel Caliber 5625, an in-house automatic movement operating at a swift high-beat frequency of 28,800 vibrations per hour (8 beats per second). Celebrated by vintage purists for its exceptional chronometric rate stability, this caliber features hacking seconds, hand-winding capability, an integrated quick-set date calendar mechanism, and a lavish 25-jewel specification.
• Architectural ""7080"" Cushion Geometry and Grammar of Design: The reference 5625-7080 is globally distinguished among collectors for its distinct, softly contoured cushion-style stainless steel case executed under Taro Tanaka's ""Grammar of Design"" principles. Featuring sharp angular facets, broad brushed surfaces, and zero-distortion Zaratsu mirror-polished edge bevels, the case is engineered to catch light from every angle while resting completely flat against the wrist.
• Masterful Dial Harmony and Date Window Utility: The dial of the 5625-7080 displays clinical mid-century visual balance, featuring a radiant silver sunburst canvas decorated with hand-applied, multifaceted rectangular block indices and sharp dauphine hands. Symmetrically framed at 3 o'clock is the quick-set date window, proudly offset by the applied metal ""KS"" logo and ""HI-BEAT"" typography above 6 o'clock.
• The Sovereign Gold ""KS"" Case Back Medallion Heritage: The ultimate hallmark of this 1970 vintage treasure sits embedded on the case back: the iconic solid gold ""KS"" medallion. Certifying its top-tier factory regulation and high-grade movement status, the 5625-7080 King Seiko Calendar remains an indispensable, highly collectible cornerstone reference representing the golden era of Japanese automatic horology.

For more information, please look at the pictures.

Notes

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