Inspired by 1930's flyback chronographs and driven by a desire to go beyond a regular chronograph construction
It has Japanese automatic movement and 6R35 calibre
sweep seconds and magnified date
These new lightweight metal models
quartz movements were not considered
Ball NM2050C-P1A-BK Engineer Master II Aviator Oversize Rubber Strap Tutima Inspired by 1930's flyback chronographsMovement Automatic caliber BALL RR1102 Functions 31 micro gas tubes on hour, minute, second hands, and dial for night reading capability Hours, minutes, sweep seconds, day and date Shock resistance 5,000Gs shock resistance Water resistance 100m 330ft Antimagnetic 4,800A m Case Stainless steel (NM2050C 01) Stainless steel with TiC coating (NM2050C 02) 48mm, height 13. 5m Anti reflective convex sapphire crystal Screwed in crown Band Stainless steel