Swiss made Luminox series 4220 "Authorized for NAVY use" quartz model in black PVD coated 45mm steel case with anti-glare sapphire crystal on black rubber strap. Lithium battery allows for 8-10 battery life.
Promo:
Factory Model Number. A4221.
Swiss Quartz Analog ( Battery powered ). Lithium battery.
Functions:
Date calendar, window display.
Uni-Directional rotating, ratcheted, 0-60 Elapsed-Time.
Sport style, screw-down (threaded).
Anti-Glare treated. Sapphire. Flat profile.
Case Back:
Solid Stainless steel. Screw-down style ( threaded ). Factory Engraved/Raised Logo.