Heuer Bundeswehr 1550SG

A STAINLESS STEEL FLYBACK CHRONOGRAPH MILITARY 'BUND' WRISTWATCH WITH 30 MN REGISTERS REF 1550 SG CASE 8398 MADE FOR THE GERMAN MILITARY ASSIGNATION NUMBER 6645-12-146-3774 CIRCA 1970

A STAINLESS STEEL FLYBACK CHRONOGRAPH MILITARY 'BUND' WRISTWATCH WITH 30 MN REGISTERS REF 1550 SG CASE 8398 MADE FOR THE GERMAN MILITARY ASSIGNATION NUMBER 6645-12-146-3774 CIRCA 1970 stainless steel diameter 43 mm , • cal. 230 manual winding lever movement, 17 jewels, mono-metallic balance • black matte dial, luminous Arabic numerals, subsidiary dials for constant seconds and 30-minute register, outer minute track • stainless steel micro sand blasted case, bi-directional revolving black bezel calibrated for 60 units, back secured by 4 screws, back engraved • dial signedHeuer, Estimate 5,000 - 7,000 CHF , Sold 7,250 CHF , A STAINLESS STEEL FLYBACK CHRONOGRAPH MILITARY 'BUND' WRISTWATCH WITH 30 MN REGISTERS REF 1550 SG CASE 8398 MADE FOR THE GERMAN MILITARY ASSIGNATION NUMBER 6645-12-146-3774 CIRCA 1970 stainless steel diameter 43 mm , • cal. 230 manual winding lever movement, 17 jewels, mono-metallic balance • black matte dial, luminous Arabic numerals, subsidiary dials for constant seconds and 30-minute register, outer minute track • stainless steel micro sand blasted case, bi-directional revolving black bezel calibrated for 60 units, back secured by 4 screws, back engraved • dial signed , In 1967 Heuer was commissioned by the German military, the Bundeswehr, to produce a chronograph watch which was designed to cater to their pilots. The present model with the reference 1550 SG is equipped with a Valjoux 230 manual movement and a "clean" dial - no markings beyond the "Heuer" logo. It includes a flyback function and permits easy readability, which were requested characteristics to cater to the needs of the Bundeswehr’s pilots.