ELVIA Automatic Military Divers Watch with Sapphire Crystal and 24 Jewel Automatic Day Date MovementSKU: ELVIA SB DIV AU ELVIA first produced military specification dive watches in the 1970s for the French Marine Nationale (French Navy). This model retains the character and utilitarian design of those original issued watches while incorporating substantial modern upgrades for durability and reliability in everyday use. Among the improvements over the 1970s models are a scratch resistant sapphire crystal, a ceramic bezel insert, and significantly