35 mm diameter
The present wristwatch is a fine example created specifically for IOS (Investors Overseas Services, Ltd.) and presented to their most valuable clients - the members of the “IOS Million Dollar Association”. Classic and elegant, the round-shaped 18K yellow gold case is fitted with a gorgeous, glossy bezel. Situated above 6 o’clock, the IOS logo was painted in black on the attractive champagne dial. The lettering "Million Dollar Associate, IOS" is engraved on the case back. The special integrated mesh bracelet was made exclusively for this reference. The reference 3565 was in production for only two years between 1968 and 1971, making the present watch a great watch for watch collectors of vintage Patek Philippe.