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Seiko Prospex SPB381J1 GMT Divers Automatic Men's Watch – Marine Green Dial & Silver Steel Bracelet

The Seiko Prospex GMT Divers Automatic SPB381J1 combines robust functionality with refined design. Featuring a marine green dial paired with a durable silver steel strap, this watch offers precise GMT tracking and reliable automatic movement. Engineered for diving, it ensures water resistance and legibility under challenging conditions, making it an essential tool for professionals and enthusiasts alike.
The Seiko Prospex GMT Divers Automatic SPB381J1 combines robust functionality with refined design. Featuring a marine green dial and a durable silver steel strap, this watch offers precise GMT tracking and automatic movement, ideal for professional divers and travelers. Its sturdy construction ensures reliability under water, while the elegant color scheme enhances versatility for everyday wear. A sophisticated timepiece engineered for performance and style.
This modern re-interpretation of the 1968 Diver’s watch is inspired by Japan’s first hi-beat one-piece Diver’s watch created by Seiko.
The success of the 1968 model laid the foundation for Seiko Diver’s watch development which for sixty years has innovated in wearable, precise watches for professional and recreational divers.
This modern watch is powered by the new in-house Calibre 6R54 and is the first of Seiko’s diving watches with mechanical GMT functionality. Built for wearability: the bracelet fits comfortably due to its low centre of gravity and short-pitch – and durability: with a three-day power reserve and high-quality scratch resistant Japanese ceramic Diving scale, its water resistance is up to 200m.
Prospex is a combination of the words ‘Professional’ and ‘Specifications.’ Seiko Prospex timepieces are designed to be practical, reliable and durable; to meet the high standards required in extreme environments for sports lovers and adventure seekers alike.
Movement
- Caliber Number: 6R54
- Movement Type: Automatic with manual winding
- Precision: +25 to -15 seconds per day
- Power reserve: Approx. 72 hours(3 days)
- Jewels: 24
Functions
- 24-hour hand
- Stop second hand function
Case Size
Thickness: 12.9mm
Diameter: 42.0mm
Lug-to-lug: 48.6mm
Distance between lugs: 20mm
- Case Material: Stainless steel (super hard coating)
- Crystal: Sapphire crystal
- Crystal Coating: Anti-reflective coating on inner surface
- LumiBrite: LumiBrite on hands, index(es) and bezel
- Clasp: Three-fold clasp with secure lock , push button release with extender
Other Details
- Water Resistance: 200m / 660ft diver's
- Magnetic Resistance: 4,800 A/m
Features
- Unidirectional rotating bezel
- Screw-down crown
- Three-fold clasp with secure lock
- Screw case back
Excellent!
Based on 4.9/5 of 6,341 + reviews