SLA077J1

SLA077J1

The Seiko Prospex SLA077J1 is a Marinemaster dive watch inspired by Seiko’s 1968 heritage. Its 42.6mm stainless steel case gives it a solid presence, while the textured white dial creates a clean, high-contrast appearance. A dual-curved sapphire crystal with anti-reflective coating helps protect the dial and keeps it easy to read.

Inside, the watch uses Seiko’s 8L35 automatic movement with manual winding capability. It offers approximately 50 hours of power reserve, along with a date display and stop-seconds function. The movement operates at 28,800 vibrations per hour and contains 26 jewels.

Built for serious diving, the SLA077J1 provides 300-meter water resistance. Its unidirectional rotating bezel, screw-down crown, and screw case back add practical protection. LumiBrite on the hands, indexes, and bezel also improves visibility in darker conditions.

Key Features

• Case: 42.6mm stainless steel
• Movement: Seiko Caliber 8L35 automatic with manual winding
• Power Reserve: Approximately 50 hours
• Dial: Textured white
• Crystal: Dual-curved sapphire with anti-reflective coating
• Functions: Hours, minutes, seconds, date, stop-seconds
• Bezel: Unidirectional rotating bezel
• Water Resistance: 300m / 1000ft diver’s
• Case Thickness: 13.4mm
• Lug-to-Lug: 49.3mm
• Lug Width: 20mm
• Weight: 196g
• Bracelet: Stainless steel
• Crown: Screw-down
• Clasp: Three-fold clasp with secure lock and push-button release
• LumiBrite: Hands, indexes, and bezel
• Magnetic Resistance: 4,800 A/m
• Jewels: 26