Sterling Silver Wind Indicator Open-face Watch

Description:

Sterling Silver Wind Indicator Open-face Watch, John Murrison, Oldeldrum, Scotland, no. 9933, roman numeral dial with wind indicator and constant seconds subsidiary dials, blued-steel hands, key-wind, key-set, chain fusee, swing-out movement, movement and dust cover engraved "Geo. Bruce/Oldeldrum," case and movement marked 933, dia. 50 mm.
Estimate $300-500

currently winding, setting and ticking but does not stay running, lacking stem crown