Seiko Prospex Marine Master SBBN047 1,000m Diver Quartz Watch "Tuna Can"Seiko Prospex Marine Master SBBN047 Shipped from Japan! The Seiko Marine Master SBBN047 is nicknamed the "tuna can" because of Seiko's unique outer case that protects the watch body. This world first outer case protector structure makes this diver's watch highly shock resistant and safe. In addition, this watch does not require a helium escape valve even though it is a full fledged diver's watch waterproof to 1,000m saturation diving. Reliable,

2mm (height)

Weight : 121g

World time

ORIENT STAR RK-AV0124G Accessories

Maximum arm length : 203

Glass Material: Curve Hard Rex

The back of the case is a massive screw-back case with DLC treatment for superior wear resistance

Accuracy ±15 seconds/month

self-winding (with manual winding)

Average daily deviation: +25 to -15 seconds (static accuracy)*

Weight: 182g

Forced reception function