Seiko Cal. 6331 - 450

The Seiko 6331-450 represents an important milestone in Seiko's 1988 lineup. Powered by the 6331 caliber with 26j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-173d976de36d]

Also known as: UFO, Rally

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1988

Related Models

• Seiko 3859-665
• Seiko 7117-910
• Seiko 6279-696
• Seiko 5262-219
• Seiko 5250-635
• Seiko 5295-975
• Seiko 4555-191
• Seiko 7055-987
• Seiko 5616-659
• Seiko 4527-246
• Seiko 6276-369
• Seiko 6612-530