Seiko Prospex 1968 Mechanical Automatic Diver Scuba GMT MM200 Black Dial SPB383

Seiko Prospex 1968 Diver's Style Mechanical Automatic GMT "MM200" Diver Black Dial 

SPB383
(JDM Version: SBEJ011)

Seiko Prospex SPB383 – Black Dial GMT Diver

The Seiko Prospex 1968 Diver’s Style Mechanical Automatic GMT Diver SPB383, also known as the JDM reference SBEJ011, is a modern re‑imagining of Seiko’s iconic 1968 diver’s watch. With its bold black dial and robust construction, this professional‑grade timepiece is built for divers, travelers, and collectors who demand precision and durability.

Powered by the advanced 6R54 automatic movement, the SPB383 delivers a 72‑hour power reserve, dual winding capability, and reliable accuracy. Its GMT function makes it the perfect companion for globetrotters, while the 24 jewels ensure smooth operation and long‑lasting performance.

Designed for underwater exploration, the SPB383 offers 200m water resistance, an anti‑reflective sapphire crystal, and Seiko’s signature LumiBrite technology for outstanding visibility in the darkest depths. The unidirectional rotating bezel and screw‑down crown provide essential safety and functionality for professional diving.

Crafted in stainless steel with a ceramic bezel insert, this watch balances rugged toughness with refined style. At 176g, it remains comfortable for daily wear while retaining the strength needed for adventure.

The Seiko Prospex SPB383 is more than a dive watch — it is a testament to Seiko’s heritage and innovation. With its sleek black dial, GMT versatility, and Made in Japan craftsmanship, it stands as a must‑have for collectors and adventurers alike.

SPB383 Specifications:

Movement
Caliber: 6R54
Movement Type: Automatic with manual winding
Precision: +25 to -15 seconds per day
Power reserve: Approx. 72 hours(3 days)
Jewels: 24

Exterior
Case Material: Stainless steel (Bezel: Stainless steel with ceramic display)
Case Size: Thickness:12.9mm; Diameter:42.0mm; Lug-to-lug:48.6mm
Crystal: Sapphire crystal
Crystal Coating: Anti-reflective coating on the inner surface
LumiBrite: LumiBrite on hands, index(es), and bezel
Clasp: Three-fold clasp with secure lock , push button release with extender
Distance between lugs: 20

Other Details
Water Resistance: 200m / 660ft diver's
Magnetic Resistance: 4,800 A/m
Weight: 176.0g

Features
Unidirectional rotating bezel
Screw-down crown
Three-fold clasp with secure lock
Screw case back
24-hour hand (dual time display function)
Stop-second hand function

* Kindly note that the displayed image is either a graphic representation or a prototype and may not precisely reflect the final product. 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.