The Panerai PAM 441 is the strap version of the PAM 438 aka the Tuttonero. The PAM 441 and the PAM 438 have the same dial as the PAM 359, plus a GMT function (the smaller arrow on the dial).
Panerai (PAM 441) Luminor 1950 3 Days GMT Automatic Ceramica
44mm black ceramic case, manual-wind mechanical Panerai P.9001 calibre
Functions: hours, minutes, small seconds, date, 2nd time zone, power reserve indicator on the back, seconds reset, Crystal: Sapphire (2.3 mm)

by Kyle Stults
SIHH | Perpetuelle.com Watch Blog