Classic 40mm Three Sub-dials SEAGULL 1963 ST1780 Mechanical Movement, Sapphire.
⌚ Seagull 1963 Power Reserve Calendar Automatic – Multiple Dial Options. ⏱️ Seconds Subdial (6 o’clock on white, black & guilloché silver dials). 🪞Caseback: Exhibition display with “1963” & Chinese Air Force markings.