I have much to say about timepieces with 24-hour markings, but not much time to say it now. So, for the moment (pun unintended) I'll display a bit about some of these fascinating timepieces.
Ollech & Wajs (Switzerland) M1002 Early-Bird - 17-jewel hand-wound Viet Nam issue. 37.5 mm diameter, 47.5 mm lug-to-lug. Red and blue bi-directional bezel. Made 1967-1970. Sweep second hand. ETA movement. MILSPEC non-shatter acrylic crystal.
Have you found errors nontrivial or marginal, factual, analytical and illogical, arithmetical, temporal, or even typographical? Please let me know; drop me email. Thanks!