Grand Seiko Automatic SBGR051 72hours

Detailed Description

• Listed price: 367,500 JPY
• Made in Japan
• Case: SS
• Bracelet: SS
• Dial: Silver
• Lumi : None
• Crystal: Sapphire with non-reflection coating
• Diameter: 37 mm (without the crown)
• Thickness: 13.3 mm
• Weight: 140 g
• Movement: 9S65 35J (Power reserve 72Hrs.) Hack/with hand-winding
• No Screw down crown
• Accuracy: +5/-3 sec/day
• 10 ATM water resistance
• Sea-through back
• Instruction, International Grand Seiko official warranty
• This price is including S/H all over the world

Grand Seiko Automatic SBGR051 Power Reserve 72Hr

• Seiko has not stopped to evolve Grand Seiko's quality since 1998, when Seiko

• You could find an ultimate SEIKO technology for 9S65 Movement here.

• 1. Change the automatic winding mechanism from (Seiko Original) Magic lever system to Reverser system, then the efficiency of winding system was improved.

• 2. Changed the material of hair spring (Spron 610) -- Shock resistance efficiency was improved.

• 3. Changed the design of the scape wheel & the ancre (SEIKO Technology MEMS). , light weight and extremely precise.

A list of references