Nearly a decade prior to unveiling their inaugural automatic chronograph, the 6139, Seiko commemorated the Olympic Games in Tokyo by launching two distinctive and specialized timepieces that would leave an indelible mark on Seiko's heritage.
The initial creation was the 6217 World Time, while the second stood as a monopusher chronograph, boasting a 60-second timer, famously recognized as the 45899.
Rooted in the hand-wound Crown movement, the "Monopusher" signaled the dawn of a groundbreaking era for Seiko. Its chronograph mechanism incorporated the iconic column wheel, orchestrating the engagement with the chronograph wheel horizontally through two coupling wheels via the third wheel. The single pusher elegantly served the dual function of initiating and halting the sweep hand, as well as swiftly resetting it.
This "Eternity ring" variant showcases a radiant silver ring encompassing its meticulously crafted AD dial and indexes. Exceptionally rare to come by, its impeccable condition surpasses what photos can truly capture.
Ships from Tokyo, Japan.
Seiko Crown Chronograph 45899
The monopusher is in very good condition
The case is strong with just light scratches which is expected from a watch of that age. The dial is the main attraction here as it is immaculate and the hands remain intact. The is a slight burn in the center of the hands which is expected for this particular AD variant. The original glass is also clean with no visible scratches.
The bracelet is in very good condition with some light scratches due to use and storage.
The caseback has light scratches but the etched Olympics torch is visible.
MODEL: Crown Chronograph "Monopusher"
DIAL: Original sector dial
CASE MATERIAL: Stainless Steel
CASE DIMENSIONS: 45 x 37 mm, 18mm Lug Width, 12mm Height
CRYSTAL: Mineral Crystal
CASE BACK: Screw-in Stainless Steel
MOVEMENT: Seiko Cal.5719A
Manufacturing date: January 1964
Service History: Serviced, ±10s/day
Bracelet/Strap: Original and correct Seiko railroad bracelet