Seiko Prospex Marine Master Mechanical Automatic Professional 300M Diver Blue MM300 SLA023 (SBDX025)
Regular price
$2,599.00 USD
Seiko Prospex Marinemaster Mechanical Automatic Professional 300M Diver New "MM300" Blue Dial
SLA023
(JDM Version Model: SBDX025)
Dive Deeper: Seiko SLA023 MM300 Redefines Ocean-Grade Elegance
Built for the deep. Designed for distinction. The Seiko Prospex Marinemaster SLA023, also known as the JDM-exclusive SBDX025, is a professional-grade 300M diver’s watch that embodies the pinnacle of Japanese engineering and ocean-tested reliability. This is the new-generation MM300 — a bold evolution of Seiko’s iconic dive heritage, now dressed in a mesmerizing marine blue.
A Dial That Captures the Deep
The SLA023’s blue dial evokes the shifting hues of the ocean depths, enhanced by Lumibrite-coated hands and indexes for unmatched legibility in low light. The ceramic bezel adds durability and a sleek contrast, while the monobloc case construction ensures structural integrity under extreme pressure.
Own the Seiko Prospex SLA023 MM300 Blue Dial — a timepiece that blends rugged performance with refined aesthetics. Whether you're diving into the deep or navigating daily life, this watch delivers uncompromising style and substance.
Secure yours today!
SLA023 Specification:
Movement
Caliber: 8L35
Movement Type: Automatic with manual winding capacity
Accuracy: +15 to -10 seconds per day
Power Reserve: Approx. 50 hours
28,800 vibration/hour
Antimagnetic
Jewel: 26
Exterior
Case Material: Stainless steel with ceramic bezel
Case Size: Diameter 44.3mm, Thickness 15.4mm
Crystal: Sapphire
Crystal Coating: Anti-reflective coating on the inner surface
LumiBrite: Lumibrite on hands and indexes
Clasp: Three-fold clasp with secure lock & push button release, solid & slide adjuster
Other Details
Water Resistance 300m
One-piece structure
Screw-down crown
Unidirectional rotating bezel
Date display
Stop-seconds hand function
* Kindly note that the displayed image is either a graphic representation or a prototype and may not reflect the final product precisely. Color variations may occur due to differences in browsers, display settings, or devices used for viewing. Additionally, the orientation of the case back in the actual product may differ from what is shown in the photograph.