early MK1 execution - Tropical dial - Flyback chronograph
Manufacturer: Longines
Model: Diver Chronograph
Reference: 7981-1
Functions: chronograph - small running second - screwed-on caseback
Intricacies: Flyback chronograph
Material: Stainless steel
Dial: black/white
Watch glass: plexiglass
Bracelet: stainless steel
Type of clasp: deployant buckle
Diameter: 40mm
Caliber name: Longines 30CH
Movement type: manual wound
Year of Manufacture: 1966
Overall condition: 8 - worn regularly - light signs of wear
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