Longines La Grande Classique Quartz 37 Stainless Steel L4.766.4.13.6

Its counterpart is L4.766.4.13.2, with the same 37 mm steel case, white Eastern Arabic dial, stick hands, sapphire crystal and 20 mm lug width. The final digit of the reference separates them, .6 marking this bracelet version. The black Roman-numeral dial follows the same pattern: L4.766.4.51.6 is the bracelet version of L4.766.4.51.2.

At 37 mm the dial and case change across the range: a champagne dial in yellow gold on L4.766.6.32.2, and a brown dial in a gold PVD-coated case on L4.766.1.67.7. The 37 mm versions with a gem-set bezel carry the L4.770 prefix.