Yacht Timer” Guinand

“Yacht Timer” Guinand, “Chronograph, Yacht-Timer”, Ref. 501-34. Made in the 1970’s. Very fine, water-resistant, stainless steel, gentleman’s wristwatch with round button chronograph, register, tachometer and date. Two-body solid, polished and brushed, large inclined bezel, screw-down case back. Graduated brown with applied luminous faceted indexes, subsidiary dials for the constant seconds and the 30-minute register with yacht timing scale, outer minute/seconds and 1/5th seconds divisions, outermost tachometer graduated to 1000uph, date aperture at 6. Luminous white “baton” hands. Cal. 7734, brushed-nickel, 17 jewels, straight-line lever escapement, monometallic balance, shock absorber, self-compensating flat balance spring. Dim. 38 x 44 mm. Thickness 13.5 mm.