Patek Philippe Calatrava 3820J Silver Dial Applied Breguet Numerals in 18k yellow gold with Original Certificate of Origine nylon-straps This is the same "T"

This is the same "T" found on British military-issued Rolex Submariners (known as MilSubs)

It is fitted with an 18k yellow gold PP pin buckle

screw down case back

the Oyster (1926)

The 242T is driven by a Valjoux 72 movement

Patek Philippe Calatrava 3820J Silver Dial Applied Breguet Numerals in 18k yellow gold with Original Certificate of Origine nylon-straps This is the same "T"Presented in 1932, amid the challenges of the Great Depression, the Patek Philippe Calatrava Ref. 96 signaled a new direction for Patek Philippe. Drawing clear inspiration from the Bauhaus doctrine of form follows function, it became the firms first serially produced wristwatch and introduced a restrained, contemporary aesthetic at a time when ornate pocket watches still dominated. Named after the 12th century Spanish Order of Calatrava, it has since