Seiko Cal. 6331 - 921

The Seiko 6331-921 represents an important milestone in Seiko's 1995 lineup. Powered by the 6331 caliber with 22j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-54ad726fa24f]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

34mm

Case Thickness

9.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Green

Jewels

22j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1995

Related Models

• Seiko 3863-246
• Seiko 5256-634
• Seiko 4573-850
• Seiko 4575-447
• Seiko 6149-493
• Seiko 7119-703
• Seiko 4551-529
• Seiko 4433-567
• Seiko 5249-756
• Seiko 5220-312
• Seiko 6678-892
• Seiko 6223-202