*LNOS* 1975 Breitling TransOcean Chrono-Matic (Ref. 2129) Blue Dial "Cal. 12"

The "Chronomatic" calibre 11 movement is argued to be the first, if not one of the first automatic chronograph movements ever produced. In the 1960s many major watch brands were competing to create the first automatic chronograph movement. Rivalries and tensions were high between the Buren group, Seiko, and Zenith. The Breitling / Hamilton / Heuer joint effort to create the automatic chronograph is said to have been secretly named Project 99. Once the Chronomatic movement was created, several subsequent variations followed, including the cal. 12 which features a more accurate 21,600 bpm. Breitling housed many of their chronographs with this groundbreaking movement, including this superb ref. 2129

This "LNOS" or like new old stock example is exactly as described, showing no actual signs of previous use whatsoever. Apart from a few superficial storage marks, the entire watch is essentially in brand new condition. 

Stock #
Brand Breitling
Style TransOcean Chrono-Matic
Model 2129
Serial 14XXXXX
Size Men's
Material Stainless Steel
Dial Matte Blue
Millimeters 41
Bracelet Breitling Integrated Bracelet



The case is in "like new old stock condition", featuring all of its original finishings in unaltered factory condition with only superficial storage marks slightly present. The case retains its original Bretiling-signed crown and fluted pump pushers. The case back retains all of its original finishing in crisp and untouched condition. The original Breitling integrated bracelet is also in "like new old stock" condition showing no stretch  with only minor storage marks. The bracelet retains 19 links and will fit up to a 7 1/2-inch wrist.


The original matte blue dial with white sub-dials features both a UPH timing scale as well as a pulsations scale. The dial is in flawless condition. The tritium lume plots are a charming light green color and exhibit no degradation under U.V. light inspection. The original tritium hands match the dial perfectly, are in flawless condition, and exhibit no degradation under U.V. light inspection.


None. The watch is keeping time, previous service history is unknown. Backed by a 1-year warranty on accurate timekeeping.

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