Radiomir 1940 3 Days GMT Automatic Acciaio Hobnail

In Context

At 45 mm it is a large watch — well above this catalogue’s 40 mm median, and enough to dominate a narrow wrist. The case back is open, so the movement is visible without taking the watch apart, and the sapphire crystal will resist everything short of deliberate abuse. 100 m is genuine swimming resistance — more than the shape of this watch suggests it would need.

The movement winds itself from the motion of your wrist. 72 hours of reserve puts it well past a weekend — several days off the wrist and it is still going. At 28,800 vph the seconds hand advances 8 times a second.

PAM00627 stands on its own in this catalogue — no other reference here shares its base number. It pairs a black dial with a stainless steel case. Beyond the time it carries a gmt.

The P.4001 calibre is developed from the automatic P.4000 movement whose main technical characteristics it share: the off-centre micro rotor which rotates in both directions, the power reserve of three days stored in two spring barrels linked in series, the mechanism for stopping the balance, enabling the time to be set with absolute precision and the full balance bridge with twin supports for greater stability. The calibre also have some extremely useful additional functions: the date, the GMT function with a central hand which indicates the time in a second time zone, am/pm indication (relative to home time) in the small seconds dial and, finally, indication of the remaining power reserve on a bridge of the movement.

3 other watches in the library run the Panerai P.4001.

Panerai

Luminor Due 45 3 Days Automatic Date Stainless Steel / Grey

PAM00943 · 45 mm

Panerai

Radiomir 1940 45 3 Days GMT Automatic Stainless Steel / Black -Tuxedo

PAM00657 · 45 mm

Panerai

Radiomir 1940 45 3 Days GMT Automatic Stainless Steel / Military Green

PAM00998 · 45 mm