Spence 300 Automatic Aquamarine399.00Buy!$Spinnaker-watches.comDelivery: in USA ReportThe Spence 300 is a remarkable timepiece. Not in heft, not in size but in the sheer precision of its engineering. Carefully considered design and hand assembled workmanship results in a timepiece that more→is only 11.5mm in thickness yet capable of enduring over 300m of water resistance.