I found another a double signed Omega Tissot Oversize Calatrava from the end 30's... This time with silver dial and in mint condition. Normally only chrono's have been found with this double signature and only few time-only watches. It is believed that Tissot also put Omega on the dial in new markets at the end of the 30's to promote the brand and highlight the ties with Omega (mainly in South-America). The original silver dial has applied gold numeral numerals and black outer track. The original blued hands are stunning dagger style. The calatrava case measures a whopping 38mm and is steel with chrome mid-case. Movement is Cal 27 Tissot and working well. Attached is a period style cream/cognac pigskin strap. Really rare piece and in minty condition.