Archetype Blackhawk Automatic Calendar Steel

The Blackhawk Automatic gives a nod to vintage aviator watches and features our big date and calendar complication. The open-heart dial allows you to see the balance wheel in motion as you wear it. Archetype's watch cases are made from 316L stainless steel with a scratch-resistant crystal and a stainless steel bracelet, and the strap changes are simple and easy with their quick release springbar system. SPECIFICATIONS Movement: PTS LB19 Multifunction, 20 Jewels, 21600 BPH, Up to 36 Hour Power Reserve. Made in China. Accuracy: -20/+40 sec per dayFunctions: Hours, Minutes, Central Seconds, Date, Day, MonthCase: Hand-finished 316L Stainless SteelCrystal: Hardened Mineral Dimensions: 42mm Wide. 10.8mm ThickLug to Lug: 46mmWater Resistance: 5 ATMStrap: 20mm Solid Stainless Steel Bracelet w/ Tool-free, Quick-release Springbar SystemWrist Circumference: 5.75-8” (140mm/210mm)Weight: 5.60 oz (159 grams)