Seiko Prospex Marine Master SBBN047 1,000m Diver Quartz Watch "Tuna Can" Spring Drive Accuracy: -10 to +20 seconds

Accuracy: -10 to +20 seconds per day (average daily deviation in static state)

In terms of functionality

CITIZEN PROMASTER BN0247-10A Accessories

The Seiko Presage SARJ003 is a high-end wristwatch that combines a design that expresses a sophisticated Japanese aesthetic with a high-precision mechanical movement

（Sapphire glass (anti-reflective coating on both sides)

Seiko Prospex Marine Master SBBN047 1,000m Diver Quartz Watch "Tuna Can" Spring Drive Accuracy: -10 to +20 secondsSeiko 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,