Tissot Navigator Worldtimer 4002-50 NOS
NOS condition - sticker on the back - world time watch
The dial is clearly structured yet intriguingly complex. The rotating city ring with 24 international destinations, combined with the gold 24-hour ring, allows all world times to be read simultaneously – a function that continues to reflect the fascination of global travel to this day. Despite the wealth of information, the dial remains exceptionally legible.
What truly sets this example apart, however, is its virtually unworn condition. The dial is flawless, while the case shows hardly any signs of wear and retains its original proportions with sharp edges and well-defined lines. The deep engraving of the serial number, along with the preserved caseback sticker, further underline the authenticity and outstanding state of preservation.
Inside, the watch is powered by the in-house manual-winding Tissot caliber 28.5-21 with central seconds. The operation of the world time function is both clever and refined: when setting the time, the city ring moves in sync, while pressing the pusher at two o’clock and then turning the crown allows the desired time zone to be adjusted independently.
On the wrist, this Tissot offers a warm, elegant presence with a distinctive character. The combination of technical refinement, aesthetic harmony and NOS condition makes it a truly exceptional vintage collector’s piece.
Condition report
Dial: flawless – perfectly preserved printing of the blue city ring – signed “Tissot Swiss Made”.
Case: 36 mm 18k yellow gold case in virtually unworn condition – unpolished – minor storage marks – sharp lugs – deep engraving 32/100 on the caseback.
Movement: manual-winding Tissot caliber 28.5-21 – running perfectly – timegrapher results: rate deviation: +32s/day, amplitude: 225, beat error: 0.5.
Serial number: 32/100
Int.Exe.: 36214
Manufacturer: Tissot
Model: Navigator Worldtimer
Reference: 4002-50
Functions: central second - hour and minute - World Timer
Material: Yellow Gold
Dial: Multicolor
Watch glass: acrylic crystal
Bracelet: leather
Type of clasp: pin buckle
Diameter: 36mm
Caliber name: Tissot 28,5 - 21
Movement type: manual wind
Year of Manufacture: 1952
Stock No.: PTV2314
Overall condition: 10 - NOS (new old stock) - unworn or almost unworn
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