Seiko Prospex SLA041 The 1975 Professional Diver’s

Model #






Case Size

Thickness: 17.2 ㎜-Diameter: 52.4 ㎜-Length: 53.5 ㎜

Case Material

Titanium with Ever-Brilliant Steel

Water Resistance

1000m / 3300ft for saturation diving


Case Titanium with Ever-Brilliant Steel
Case Back Solid
Case Length 53.5mm
Case Width 52.4mm
Case Thickness 17.2mm
Crown Screw-down
Crystal Sapphire Crystal
Dial Color Blue
Hands Lumibrite
Dial Markers Lumibrite
Functions Hours, Minutes, Seconds, Date, Rotating Bezel
Movement Mechanical Automatic with manual winding capacity, 8L35, 50 hours power reserve
Water Resistance 1000m
Bracelet Strap Silicone
Warranty Full Factory Warranty
Gender Men’s
Brand Seiko Prospex


It all began with a letter from Hiroshima. The correspondent, a professional diver, explained that no watch could withstand the stresses and strains he experienced when working at depths greater than 300m. Inspired, Seiko engineers got down to work. Years of research development paid off in 1975 with the introduction of the world’s first titanium cased diver’s watch: the Professional Diver’s 600m.


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