Steeldive SD1987 Big Sub Men Dive Watch Dial:Red Marker Case diameter: 41mm(without crown)Case length:

Case diameter: 41mm(without crown)Case length: 48mm(lug to lug)Case thickness: 13

Bezel material: stainless steel

hence the nickname

Water resistance: 300 m / 30 ATMLuminous: Swiss BGW9 blue super luminous

it is still V1 3 hole adjustment stamped clasp

Steeldive SD1987 Big Sub Men Dive Watch Dial:Red Marker Case diameter: 41mm(without crown)Case length:Watch Specification Model: SD1987 Movement: Japan NH35 automatic, 41 hours of energy storage. Case material: 316L stainless steel Case back: 316L stainless steel Bracelet: 316L stainless steel Bezel: 120 Click unidirect rotational ceramic bezel Watch mirror: sapphire crystal with AR coating. Water resistance: 2000 m 200 ATM Luminous: Swiss C3 super luminous, red night light. Crown: Screw Down Case back: Screwback Case V2 clasp: 6 micro adjustment