Seiko Prospex Black Dial Mohawk with Seiko 4R36, 24-Jewel Automatic Movement #SRP585
 
The Seiko Prospex SRP585 has been nicknamed the Mohawk due to its slightly raised 20-minute portion of the bezel. Inside the watch is the 24-jewel Seiko caliber 4R36 automatic (self-winding) movement that also hand winds and is hackable. The powerful Seiko LumiBrite luminescent material is used to fill the silver hour makers and hands for excellent glow-in-the-dark capability.

Case size is 45mm
Lug width is 23mm. 
Hardlex crystal.
Seiko stainless steel bracelet with a push-button deployant clasp. Solid screw-in case back.
Water resistant to 200 meters.
Day and date window.
Screw-down crown.
 
Product Features:
Movement: Seiko 24-jewel Automatic (self-winding, hand wind)
Case: Stainless steel, 45mm diameter
Back: Engraved screw-in back
Crystal: Domed Hardlex Mineral
Band: Seiko stainless steel bracelet, push-button deployant clasp.
Water Resistant: 200 meters
Warranty: 2 Years
Discontinued: Yes