Serviced Vintage 1970 JAPAN KING SEIKO CALENDAR 4502-7010 25Jewels Hand-winding.

Serviced Vintage 1970 JAPAN KING SEIKO CALENDAR 4502-7010 25Jewels Hand-winding.

Welcome to my auction!

Item description

Movement :

• Pet name : 45 KING SEIKO CALENDAR .
• Caliber number : 4502A.
• Movement : Hand-winding.
• Beat rate : 36000bph.
• Year of manufacture start : 1969's.
• Factory : Kameido.

Externals :

• Serial No. : 060910.
• Dial No. : JAPAN 4502-7020T.
• Glass : Crystal.
• Case size : About 37.5mm.
• 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.
• Overhaul service in October 2026.
  The movement has been cleaned and oiled, so it works fine.

Key Features

• The Sovereign Peak of 36,000 VPH High-Beat Luxury (1970): Manufactured in 1970—a monumental historical year marking the turn of the decade during Japan's peak post-war industrial supremacy—the King Seiko Calendar reference 4502-7010 represented Daini Seikosha's definitive true high-beat manual-wind flagship. Standing as the ultimate rival to Suwa Seikosha's Grand Seiko line, this reference brought observatory-grade precision and uncompromising mechanical pedigree to the executive wrist.
• The Legendary 36,000 VPH 25-Jewel Caliber 4502 Engine: Powering this iconic instrument is the legendary 25-jewel Caliber 4502A, a pure in-house high-beat movement operating at an astonishing 36,000 vibrations per hour (10 beats per second). Revered by vintage purists as one of the finest manual-wind calibers ever conceived by Daini Seikosha, it features an instantaneous midnight date changeover mechanism, quick-set date calendar control, hacking seconds, and a lavish 25-jewel specification to handle the immense kinetic demands of a true 10-beat escapement.
• Architectural ""7010"" Tonneau-Cushion Case and Grammar of Design: The reference 4502-7010 is globally celebrated among collectors for its distinctive, flowing tonneau/cushion-style stainless steel architecture executing Taro Tanaka's ""Grammar of Design"" principles. Combining broad brushed upper surfaces with razor-sharp mirror-polished Zaratsu chamfers along its sweeping flanks, the low-profile case rests completely flat against the wrist while radiating brilliant light contrast.
• Masterful Dial Harmony and Date Window Utility: The dial of the 4502-7010 displays clinical mid-century visual balance, featuring a radiant finish accented by hand-applied, multifaceted rectangular block indices and razor-sharp hands. Symmetrically framed at 3 o'clock is the quick-set date window, proudly offset by the applied metal ""KS"" emblem, bold ""HI-BEAT"" typography, and the iconic Daini Seikosha lightning bolt insignia 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 4502-7010 25-jewel King Seiko Calendar remains an indispensable, highly coveted cornerstone reference for serious connoisseurs of vintage Japanese high horology.

For more information, please look at the pictures.

Notes

• Before buying.
  The vintage watches we sell are inspected and adjusted so they work fine. However, since it is an vintage watch, Please purchase on the assumption that it will be repaired.
  
  
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