Dateline TM-6907
1972–1973 · 10k White / Yellow Rolled Gold Plate
About the Dateline TM-6907
Made from 1972 through 1973, the Dateline TM-6907 is a round stainless steel automatic powered by Hamilton's caliber 629 with 19 jewels. The Dateline family was Hamilton's date-complication line during this period, and the TM-6907 fits that range with a clean, tool-adjacent aesthetic built around legibility. Two dial variants were offered: a grey dial version in a steel-finished case and a gilt dial version in a yellow-accented case, giving buyers a meaningful choice in character without changing the underlying watch.
Finding one in honest condition means checking those dial variants carefully, since grey and gilt examples each have their own aging patterns. The applied indices hold up well over time, but look for any separation at the edges, particularly on examples that have seen moisture.
From the Catalog
Hamilton offered the TM-6907 with either a strap or bracelet, pricing the strap configuration at $150.00 and the bracelet version at $160.00, with the choice of grey or gilt dial tied to the case finish.
Hamilton Catalog Images
1972
1973
1974
What to Look For
| Dial | Confirm which variant you have: grey dial on the steel-finished case, or gilt dial on the yellow-accented case. Check the applied indices for any separation at their bases or loss of adhesion. On grey dials especially, look for moisture damage or uneven aging near the edges. |
| Crystal | These came with a mineral crystal. Light surface scratches are normal and can often be polished out, but check for deeper gouges or chips around the edge where the crystal meets the bezel. |
| Movement | Ask about service history. The cannon pinion in the 629 is small and can loosen over time, which causes the hands to slip or the watch to run erratically. A watch sitting unserviced for decades likely has dried lubricants that create enough friction to affect timekeeping or stop it altogether. |
| Case | Check that they haven't been over-polished, which softens their edges and flattens the profile. Case backs on these can be stubborn to open, so look for any evidence of prying damage around the caseback edge. |
| Crown | Make sure the crown screws down or seats properly and that it hasn't been replaced with an ill-fitting substitute. Also confirm the date advances cleanly when setting, which is an easy check for overall movement health. |
The Movement
The caliber 629 is a 19-jewel automatic produced during Hamilton's Swiss-movement era. It winds via a rotor and runs without a manual-wind option, so it relies on wrist motion to stay powered. The movement is compact and generally dependable when properly serviced, though the small cannon pinion is a known wear point that a good watchmaker will check during any service.