N1F Factory SpeedMaster Moonwatch 

MOVEMENT: Seagull ST-19 Manual Handwind Movement with Functional Chronograph and Engraved with 3861 Markings
Note: The movement does not have a functional 6:00 subdial needle. It will follow the hour hand movement.
CASE DIAMETER: 42.5mm
THICKNESS: 14mm
DIAL COLOR: Black Dial with Stick Markers
CASE MATERIAL: Solid Stainless Steel 316L
BRACELET: Rubber Strap with Deployant Buckle
FRONT GLASS: Sapphire Crystal
CASE BACK: Display Case Back with Engraving
BEZEL: Ceramic Tachymeter Bezel with Numerals
CLASP TYPE: Deployant Buckle

OTHER REMARKS:

Waterproofed to 30m direct from Factory