Manufacturer GoS (Gustafsson & Sjögren) Caliber Number GoS01 Base Caliber Martin Braun (see below) Movement Type Mechanical, manual-wind In-House? Yes...
Swedish Watches
Manufacturer Kronaby Caliber Number BT001 Type Quartz Diameter ~35mm Jewels 0 (needs confirmed) Battery Cell CR3032 Battery Life ~2 years...