Oversized SS GP / UG Tri Compax. Completely original. Higher grade GP branded Cal 287 is adjusted 2 positions. Just a touch under 37mm without the crown. Caseback has some pitting around the edges. Keeping time and all functions are working, service history unknown. I'm asking $12K USD net to me, bankwire or paypal F&F. Sale is for watch head only. Not looking for trades or offers. I will cover shipping CONUS, intl at buyers expense. Plenty of refs here and elsewhere. No returns.