Longines 13ZM Sommatore 5699

A Longines chronograph identified by the owner as the 13ZM Sommatore 5699, with a light dial, applied Arabic numerals, twin registers, an outer timing track, blued hands, and a contrasting central chronograph hand. The photographs document its polished round case, crown and two pushers, numbered caseback, angular lugs, and tan leather strap. The watch is recorded here as sold; its date, exact dimensions, case material, condition, provenance, and service history remain pending further documentation.

Maker

Longines

Model

Sommatore 5699 · Owner identification

Movement

13ZM · Owner identification

Type

Twin-register chronograph

Dial

Light tone · Applied Arabic numerals

Display

Hours · Minutes · Chronograph seconds · Twin registers

Hands

Blued · Contrasting central chronograph hand

Strap

Tan leather

Sale status

Sold

Further details

Documentation in progress