Seiko Prospex Marinemaster Mechanical Automatic Professional 300M Diver "The Black-Series" Limited Edition "MM300"
Limited Edition of 600pcs
With the world's highest performance as the culmination of technological development of Seiko's diver's watch, the Seiko Prospex Marine Master Professional SBDX033 (SLA035J1) has a waterproof function for 300m saturated diving.
Introducing a full-scale professional diving watch with red seconds hand in the all-black case.
Water, which is the main component of the sea, has the property of absorbing red light, which has a wavelength near-infrared.
On the other hand, short-wavelength blue or violet light is difficult to absorb, so it repeats reflection in the sea.
Therefore, the deeper the water is, the more red light is absorbed by the water, making it harder to see, and the more blue light there is.
It is said that the light reflected from the sea contains a lot of blue, which is the reason why the sea looks blue.
In an environment with a depth of 300m where this SBDX033(SLA035J1) professional diver's watch really shows its true power,
There is almost no red light that is easily absorbed by water, and red objects and living things disappear.
In the extreme situation of the deep sea, a momentary judgment can be fatal, by coating the edge of the second's hand red, extra information is eliminated as much as possible, and readability in the deep sea is improved.
High visibility and robustness are achieved by adopting sapphire glass with an anti-reflective coating on the inside and black colour zirconia ceramics on the bezel display.
The red second hand on this SBDX033 hides in the deep sea, but in everyday use, it gives high visibility and vivid colour to the wrist.
Movement Type: Automatic with manual winding capacity
Accuracy: +15 to -10 seconds per day
Power Reserve: Approx. 50 hours
28,800 vibration / hour
Case Material: Stainless steel (hard coating)
Case Size: Diameter 44.3mm, Thickness 15.4mm
Crystal: Sapphire Crystal
Crystal Coating: Anti-reflective coating on inner surface
dial: Black LumiBrite: Lumibrite on hands and indexes
Band Material: Silicone
Water Resistance 300m
Unidirectional bezel with ceramic insert Rotating Bezel with Anti-reverse spin function Screw-down crown
Serial number engraved on the case back
Unidirectional rotating bezel
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