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The Seiko Prospex Diver’s Dark Grey Dial Automatic Men’s Watch represents an exceptional balance of Japanese engineering and timeless aesthetic refinement. Its meticulously detailed dial is protected by durable Curved Sapphire Crystal with Anti-Reflective Coating and framed by an ergonomic 40.5mm stainless steel case. Featuring high-visibility LumiBrite hands, practical timekeeping complications, and 200 m (20 ATM) Diver's water resistance, it adapts seamlessly from professional meetings to active leisure. It stands as an authentic testament to Seiko's celebrated horological innovation and enduring everyday durability.
Brand: Seiko
Gender: Men
Brand Origin: JAPAN
Series: Prospex
Additional Information: Diver’s 200m, ISO certified, reinterpretation of 1965 Seiko diver
Model: SPB143J1
Movement: JAPAN Seiko Caliber 6R35 Automatic Mechanical Movement
Movement Source: JAPAN
Power Reserve: 70 Hours
Precision: +25 / −15 seconds per day
Features: Date display, hacking seconds, hand-winding capability
Engine: Seiko Caliber 6R35
Jewels: 24 Jewels
Case Size: 40.5 mm
Lug-to-lug: 47.6 mm
Case Thickness: 13.2 mm
Band Width: 20 mm
Band Type: Bracelet
Dial Color: Dark Grey
Case Color: Silver
Band Color: Silver
Bezel: Unidirectional Rotating
Bezel Color: Black
Bezel Material: Stainless Steel
Case Material: 316L Stainless Steel
Band Material: 316L Stainless Steel
Water Resistance: 200 m (20 ATM) Diver's
Functions: Time, Date Calender: Date
Watch Style: Diver / Sports
Weight: 180 Gram
Warranty: 2 Years International Warranty
Case Back: Screw-down (Solid)
Case Shape: Round
Clasp: Three-fold clasp with secure lock & extender
Crystal: Curved Sapphire Crystal with Anti-Reflective Coating Glass
LumiBrite: Yes (Hands, Indexes & Bezel)
Barcode: 4954628234988
Known By: SPB143J1
The Seiko Prospex collection is built for professional explorers and sports enthusiasts facing challenges on sea, land, and air. Ever since introducing Japan's first dedicated diver's watch in 1965, Seiko has consistently revolutionized global standards in aquatic durability and tool-watch reliability. Engineered with rugged stainless steel cases, ultra-secure seals, and high-intensity luminescence, Prospex watches thrive under the most demanding conditions. It embodies Seiko's relentless pursuit of functional excellence and extreme durability.
Powered by the renowned in-house JAPAN Seiko Caliber 6R35 Automatic Mechanical Movement. Operates with 24 Jewels and beats at 21,600 vibrations per hour (3Hz) to guarantee consistent mechanical stability. Features bidirectional automatic winding via Seiko's proprietary Magic Lever system alongside an autonomous 70 Hours power reserve. Incorporates Diashock shock resistance technology and a stop-seconds hacking function for precise, reliable daily timekeeping.
