Vintage Seiko 6139-6020 Chronograph Pulsations

For sale is a 6139-6020 Chronograph, known as a “Pulsations” because the instead of a tachymeter, the outer ring is intended for doctors’ to calculate your pulse. These 6139 variants are a blast to collect, so much so that I have too many and need to sell at least one. This is a nice, honest example. This baby is all-original (with the exception of the crystal, near as I can tell) and the dial has serious patina. How serious? Take a good look at the dial. The words “Automatic... Vintage Sei...