Seiko Prospex Marinemaster 1000m S23627 | SBBN042

Product Description

The Prospex Marinemaster S23627 (JDM: SBBN042) is a high-performance professional dive watch designed for extreme underwater environments. As part of Seiko’s legendary "Tuna" series, this model combines robust construction with cutting-edge technology to ensure durability and precision. The watch features a lightweight yet ultra-durable titanium case, coated with a rose gold finish for an elegant contrast against its rugged design. 

Specifications:

• Limited 1,978 engraved on the case back
• Titanium case with Gold plated
• One-way bezel
• Screw down crown
• Quartz Driving system 
• Caliber # 7C46
• Silicon Band material 
• Sapphire crystal
• LumiBrite
• 1000m water resistance suitable for saturation diving
• Battery 5 years
• Magnetic resistance
• H49.4mm x W49.4mm x D15.3mm Size
• Wrist size 205mm
• Weight 120g
• 1978 quartz diver’s re-creation edition s23626
• +/-15 sec/month Accuracy
• Ref # S23627J1 / S23627J / S23627 / SBBN042 (we sell Japan Domestic market version)

Iconic "Tuna" Case Design – The signature shroud-protected case enhances impact resistance, making it one of the toughest dive watches in Seiko’s lineup. The Seiko Prospex Marinemaster 1000m is a serious professional tool watch that blends functionality with aesthetics. With its rose gold titanium case, sapphire crystal, and high-accuracy quartz movement, it stands out as an ideal choice for professional divers and Seiko collectors alike.